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medmcqa
medmcqa_0
Failure to initiate and maintain spontaneous respiration following bih is clinically k/a -
[ "Bih asphyxia", "RDS-Respiratory distress syndrome", "Respiratory failure", "Pulmonary oedema" ]
Ans. is 'b' i.e., RDS-Respiratory distress syndrome
B
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medmcqa_1
Coho study reveals all except:
[ "Incidence", "Attributable risk", "Relative risk", "Odds ratio" ]
Odds ratio
D
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medmcqa_2
Cause of death in diabetic ketoacidosis in children?
[ "Cerebral edema", "Hypokalemia", "Infection", "Acidosis" ]
Ans. is 'a' i.e., Cerebral edema o High blood sugar will cross the blood brain barrier and simultaneously will draw water inside leading to cerebral edema. Cerebral edema accounts for 60-90% of all DKA related deaths in children,o Infection is a precipitator for development of DKA.o Other precipitating factor can be ti...
A
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medmcqa_3
Which is not a high pitched hea sound
[ "Mid systolic click", "Pericardial shudder", "Opening snap", "Tumor plop sound" ]
Ans. is 'd' i.e., Tumor plop sound Low pitch hea sounds are : S3 S4 Tumor plop sound Mid systolic clicks are Heard in mitral valve prolapse during systole and are high pitch sounds. The pericardial knock (PK) is Also high-pitched and occurs slightly later than the opening snap, corresponding in timing to the abrupt ces...
D
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medmcqa_4
Patau syndrome feature include A/E –
[ "Cleft lip", "Hypotelorism", "Holoprosencephaly", "Rocker bottom foot" ]
Patau Syndrome Trisomy of 13th chromosome Cleft lip often midline Polydactyl with flexed fingers Ocular hypotelorism Bulbous nose Low set ear Holoprosencephaly Microphthalmia Cardiac malformation Scalp defect Hypoplastic or absent ribs Rocker bottom foot is seen in Edwards Syndrome (Trisomy 18)
D
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medmcqa_5
Which of the following procedures can be replaced by the use of occlusal sealants
[ "Topical fluoride application", "Prophylactic odontotomy", "Amalgam fillings", "All the above" ]
null
B
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medmcqa_6
The antianginal effect of propranolol may be attributed to which of the following ?
[ "Block of exercise induced tachycardia", "Dilation of constricted coronary vessels", "Increased cardiac force", "Increased resting heart rate" ]
null
A
medmcqa
medmcqa_7
Which of the following Intrauterine device has a minimum failure rate
[ "Progestase", "Cu T-380 A", "Levonorgestrel IUD", "T Cu -200" ]
Mirena (Levonorgestrel IUD) has least failure rate among IUD's Contraceptive implants (Implanon) have the least failure rates among all contraceptive methods. Ref : Park 23rd edition Pgno : 496
C
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medmcqa_8
Highest concentration of potassium is seen in:
[ "Jejunum", "Ileum", "Duodenal", "Sigmoid colon" ]
Ans. (d) Sigmoid colonRef: Schwartz 10/e p69* Highest concentration of potassium seen in Colon (30mEq/L).* Highest absorption of potassium occurs in colon
D
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medmcqa_9
Most sensitive index of recent transmission of malaria in community:
[ "Spleen rate", "Infant parasite rate", "Annual parasite rate", "Slide positivity rate" ]
Ans. is 'b'Annual parasite index measures incidence, spleen rate measures endemicity, ABER-Annual blood examination rate (index of operational efficiency) and SPR (slide positivity rate) - forecasting malaria and defining any area to be high risk or low risk.
B
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medmcqa_10
Treatment of choice for angiofibroma:
[ "Surgery", "Radiotherapy", "Both", "Chemotherapy" ]
(a) Surgery (best option)(Ref. Cummings, 6th ed., 1422)Radiotherapy is indicated in angiofibroma only when the tumour has intracranial extension.
A
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medmcqa_11
Platelet aggregation is caused by -
[ "Nitrous oxide", "Thromboxone A2", "Aspirin", "PGI2" ]
Robbins basic pathology 9th edition page no 46, Answer is option 2, thromboxaneA2 Thromboxane A2 is a potent platelet aggregating agent and a vasoconstrictor, is the major prostaglandin produced in these cells. Itvis an intrmediate produced in the cyclooxygenase pathway by the enzyme thromboxane synthase.
B
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medmcqa_12
Investigation of choice for diagnosis of CA colon
[ "Colonoscopy", "Double contrast barium enema", "Triple phase CT", "Viual colonoscopy" ]
Colonoscopy is the "gold standard" for establishing the diagnosis of colon cancer. It permits biopsy of a tumour to verify the diagnosis while allowing inspection of the entire colon to exclude metachronous polyps or cancers; the incidence of a synchronous cancer is approximately 3%. Colonoscopy is generally performed ...
A
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medmcqa_13
A forceps delivered premature baby develops fever, abnormal behavior, bulging fontanelle 5 days after bih. What is the likely causative organism?
[ "Neisseria meningitidis", "Listeria monocytogenes", "Staph aureus", "Pneumococcus" ]
Given scenario suggests diagnosis of Meningitis Neonatal Listeriosis 2 clinical presentations are recognized: EARLY ONSET (<5 DAYS ) LATE ONSET (>=5 DAYS) Positive result of maternal Listeria culture Obstetric complications Premature delivery Low bihweight Neonatal sepsis Negative result of maternal Listeria Culture Un...
B
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medmcqa_14
The vitelline vein forms the
[ "Hepatic vein", "Azygos vein", "Inferior mesenteric vein", "Splenic vein" ]
A i.e. Hepatic vein
A
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medmcqa_15
Most common complicationassociated with ‘Total Parenteral Nutrition’ is :
[ "Catheter related infection", "Hyperglycemia", "Pneumothorax", "Hyperkalemia" ]
Most common complication associated with TPN is Catheter related infection Total Parenteral Nutrition : For providing nutritional support All nutritional requirements given only through IV route TPN is given through central vein and not through a peripheral vein Can also use Peripherally Inserted Central Catheter (PICC...
A
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medmcqa_16
All of the following are risk factors for deep vein thrombosis (DVT) except:
[ "Obesity", "Age less than 40 years", "Duration of surgery more than thiy minutes", "Use of the oestrogen-progesterone contraceptive pills" ]
Patients over the age of 40 years is a risk factor for DVT. High dose estrogen therapy is also associated with DVT. Ref: Bailey and Love's Sho Practice of Surgery, 24th Edition, Page 970.
B
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medmcqa_17
Multiple brain abscesses are characteristic of
[ "Cyanotic heart disease", "Otitis media", "Hematogenous", "Hemorrhage" ]
(C) Hematogenous # Metastatic abscesses are commonly located in the parietal, frontal, or temporal lobes, and multiple brain abscesses are usually the result of metastatic spread from remote primary foci, accounting for 6% to 22% of cases.> Most common cause of brain abscesses was haematogenous spread, accounting for 2...
C
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medmcqa_18
True about Henoch-schonlein pupura -
[ "Palpable pupura", "Thrombocytopenia", "C-ANCA positive", "All" ]
Ans. is 'a' i.e., Palpable pupura
A
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medmcqa_19
The connective tissue cells of pulp are derived from
[ "The pool of undifferentiated mesenchymal cells", "The pool of fibroblasts", "The pool of undifferentiated ectodermal cells", "The pool of osteoblasts" ]
null
A
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medmcqa_20
Which of the following has a normal level of alpha-fetoprotein value in serum?
[ "Ovarian dysgerminoma", "Hepatoblastoma", "Embroynal carcinoma", "Yolk sac tumours" ]
null
A
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medmcqa_21
Most specific test to detect blood stains is
[ "Benzidine test", "Teichmann's test", "Ohotoluidine test", "Spectroscopic test" ]
Spectroscopic test is the most specific for blood stains. Tests for blood stains Spectroscopy tests can give information about what chemical compounds and elements are present in a sample, whether ceain types of degradation have occurred in a sample, the amount and type of crystallinity present in the sample, to name a...
D
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medmcqa_22
Granular casts in urine are?
[ "Regarded as normal", "Hyaline casts embedded with RBC", "Made up of mucoprotein substances", "Formed in the DCT" ]
On microscopic examination of urine, presence of granular cast ,RBC ,bacteria glucose, albumin, ketone bodies is abnormal granular cast are the hyaline casts embedded with RBC or WBC or these are degenerate glomerular cells or tubular epithelial cells in large number Their presence indicates renal destruction of glomer...
B
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medmcqa_23
Maryland bridge was first developed by:
[ "Thompson", "Dunn", "Tanaka", "Rochette" ]
Based on the work of Tanaka et al. on pitting corrosion for retaining acrylic resin facings and the metal etching studies of Dunn and Reisbick, Thompson and Livaditis at the University of Maryland developed a technique for the electrolytic etching of Ni-Cr and Cr-Co alloys.
A
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medmcqa_24
Clinical GOAl recommended by WHO for Prevention of CAD is
[ "Cholesterol / LDL ratio", "Cholesterol / HDL ratio", "Triglycerides / LDL ratio", "Triglycerides / HDL ratio" ]
null
B
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medmcqa_25
An infant is diagnosed with MEN-2B trait. Which the following will be best line of management?
[ "Prophylactic surgery", "Clinical observation and follow up", "Regular FNAC", "All of the above" ]
Prophylactic Thyroidectomy in RET Mutation Carriers MEN-2A Before 5 years MEN-2B Before 1 year
A
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medmcqa_26
Megaloblastic anemia is caused by:
[ "Diphyllobothriumlatum", "H-NaNa", "Taeniasaginata", "Echinococcusgranulosis" ]
Habitat: Adult worm lives in small intestine (ileum orjejunum) of man D. Latum is the longest tapeworm found in man. Life cycle: The worm passes its life cycle in one definitive host and Two intermediate host. Definitive host: Man is the main definitive host Intermediate host: First intermediate host: Small copepods ma...
A
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medmcqa_27
A child had hematuria and nephrotic syndrome (minimal change disease) was diagnosed. True about it is -
[ "A type of focal segmental GN", "IgA deposition on basement membrane", "Foot process of glomerular membrane normal", "Glomerular function is lost due to loss of poly charge on both sites of glomerular foot process." ]
null
D
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medmcqa_28
A cancer patient who is on cisplatin therapy develops severe vomiting on the 1st day of treatment, drug indicated to treat this is:
[ "Aprepitant.", "Ondansetron", "Fosaprepitant.", "All of the above." ]
Cisplatin induced vomiting has two phases. EarlyPhase: It occurs within first 24 hours. 5 HT3 antagonists like ondansetron are the agents of choice for this condition. Delayed Phase: Vomiting occurring after 24 hours is less responsive to ondansetron and other drugs. It is best controlled by substance P antagonist li...
B
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medmcqa_29
Nephrocalcinosis is seen in -
[ "Hypoparathyroidism", "Medullary sponge kidney", "DM", "All" ]
Ans. is 'b' i.e., Medullary sponge kidneyo Deposition of calcium stones on renal papillae is called nephrocalcinosis.o Nephrocalcinosis seen in -Renal tubular acidosis type I (A). Bater's syndrome Excess calcium intake Medullary sponge kidney Multiple myeloma Sarcoidosis Severe hypercalciuria Vitamin-D intoxication TB ...
B
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medmcqa_30
A 46-year-old patient comes to doctor's OPD with complains of chest pain and headache. His computed tomography (CT) scan reveals a tumor located just superior to the root of the right lung. Blood flow in which of the following veins is most likely blocked by this tumor?
[ "Hemiazygos vein", "Arch of the azygos vein", "Right subclan vein", "Right brachiocephalic vein" ]
The azygos vein arches over the root of the right lung and empties into the SVC. Other veins do not pass over the root of the right lung.
B
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medmcqa_31
High environmental temperature, best step for malaria control?
[ "Remove breeding place", "Full sleeve cloth", "Indoor insecticide", "Early treatment" ]
Ans. is 'a' i.e., Remove breeding place "The most impoant step in reducing number of mosquitoes is to eliminate their breeding places" Park
A
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medmcqa_32
Leisch nyhan syndrome due to?
[ "HGP ase deficieny (complete)", "HGP ase deficiency (paial)", "Hexosaminidase deficiency (complete)", "Hexosaminidase deficiency (paial)" ]
Ans. is 'a' i.e., HGPase deficiency (complete)
A
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medmcqa_33
Brugada syndrome is characterized by
[ "ST elevation", "Prolonged PR interval", "Prolonged QT interval", "Tall T waves" ]
Brugada syndrome is a rare syndrome characterized by >0.2 mV of ST-segment elevation with a coved ST segment and negative T wave in more than one anterior precordial lead (V1-V3) and episodes of syncope or cardiac arrest due to polymorphic VT in the absence of structural hea disease.Harrison 19e pg: 1497
A
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medmcqa_34
HEV and HDV false is -
[ "Both can infect simultaneously", "HDV causes more serious infecton d/t superinfection", "HDV cannot infect in absence of HBV", "DNA viruses" ]
null
D
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medmcqa_35
Green stick fracture is seen in?
[ "Children", "Older persons", "Immunocompromised persons", "Females" ]
(A) Children # Partial or Greenstick fracture. Bones in young people are very flexible. They bend and then may buckle or partially break, instead of breaking cleanly when overloaded (as bones in adults do). One characteristic of a greenstick fracture is that there may be a discontinuity in one cortex of the bone, but n...
A
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medmcqa_36
Risk factor for preeclampsia includes all except :
[ "Antiphospholipid syndrome", "Obesity", "Previous h/o preeclampsia", "Multigravida" ]
Risk factors for pre-eclampsia : Primigravida (young and elderly) Family history Placental abnormalities Obesity Thrombophilias Ref: Dutta Obs 9e pg 208.
D
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medmcqa_37
Which of the following organelle is associated with production and destruction of H2O2 ?
[ "Peroxisomes", "Lysosomes", "Ribosomes", "Golgi bodies" ]
Oxidases use O2 to oxidize organic substances and produce hydrogen peroxide (H2O2). Breakdown of hydrogen peroxide (H2O2), a potentially dangerous product of fatty-acid oxidation. It is catalyzed by the enzyme catalase. Both enzymes are present in peroxisomes. Though Lysosomes produce H2O2 it can't degrade it.
A
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medmcqa_38
12-year-old girl with sexual abuse presented with bleeding from genitals and fracture pelvis. Appropriate sequence of management is: AIIMS 14
[ "Internal iliac aery ligation, blood transfusion, inform police, medico-legal repo", "Blood transfusion, internal iliac aery ligation, inform police, medico-legal repo", "Blood transfusion, medico-legal repo, internal iliac aery ligation, inform police", "Inform police, medico-legal repo, blood transfusion, i...
Ans. Blood transfusion, medico-legal repo, internal iliac aery ligation, inform police
C
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medmcqa_39
All the following are true in a Randomized control trial (RCT) except:
[ "Baseline characteristics of intervention are similar in both arms", "Investigator's bias is minimized by double blinding", "The sample size required depends on the hypothesis", "The dropouts from the trial should be excluded from the analysis" ]
Intention to treat trial (ITT): Implies that the results of a RCT are unaffected by attrition (loss to follow up) or droupouts or changeover of study subjects from one group to another. The dropouts from the trial are not excluded from the analysis It provides information about the potential effects of treatment policy...
D
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medmcqa_40
Turcot's syndrome is associated with -a) Duodenal polypsb) Familial adenomatous polyposisc) Brain tumorsd) Villous adenomae) Hyperplastic polyps
[ "a", "c", "bc", "ad" ]
Turcot's syndrome is a variant of Familial adenomatous polyposis characterized by - Colorectal polyposis - Brain tumors (Medulloblastoma, Glioblastoma multiforme) The colonic polyps in Turcot's syndrome are fewer and larger than in classic FAP.
C
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medmcqa_41
Oncocytes are seen in all of the following except-
[ "Pitutary", "Thyroid", "Pancreas", "Thymus" ]
Ans. is 'd' i.e., ThymusOncocytes are cells with marked cytoplasmic eosinophilia and granularity.There is a great increase in the number of mitochondria which is typical of oncocytes morphology.Oncocytes are present in the acini and ducts of normal salivary gland.o They are also present in some benign tumors of salivar...
D
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medmcqa_42
Lysosomal Storage disorders are associated with
[ "Non-disease-specific physical findings", "Loss of function", "Enzyme assays not useful", "Genetic testing is helpless" ]
(B) Loss of function # Lysosomal storage disorders (LSDs) are inherited diseases characterized by lysosomal storage and dysfunction.> Loss of lysosomal function is associated with severe neurodegeneration, which is the prominent pathological hallmark of LSDs.> Physical findings are disease-specific, and enzyme assays o...
B
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medmcqa_43
The tensile strength of the wound stas and increases after ?
[ "Immediately after suturing", "3 to 4 weeks", "10-12weeks", "after 6 months" ]
Wounds do not begin to gain tensile strength from collagen immediately after the suturing . Wound stas achieving tensile strength around 20 % by 3 weeks, and increases by around 80 % by 12 weeks. The maximum scar strength is 80% of that of unwounded skin. Scar tissue continues to remodel for at least 6 - 12 months afte...
B
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medmcqa_44
Which is the only nerve which exits the brainstem on dorsal side ?
[ "Facial", "Trigeminal", "Trochlear", "Abducent" ]
Unique features of trochlear nerve are :?i) Most selender cranial nerve.ii) Only cranial nerve to emerge on the dorsal aspect of brain.iii) Only cranial nerve to undergo complete internal decussation before emerging i.e. right trochlear nerve arises from left trochlear nucleus and vice versa.iv) Has'longest intracrania...
C
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medmcqa_45
All of the following statements are true about Benedikt's syndrome except
[ "Contralateral tremor", "3rd nerve palsy", "Involvement of the penetrating branch of the basila aery", "Lesion at the level of the pons" ]
. *Benedikt's syndrome involve injury to red nucleus results in ipsilateral oculomotor palsy and contralateral tremor,chorea and athetosis. Benedikt's Syndrome describes an ipsilateral III nerve palsy accompanied by contralateral 'cerebellar' tremor - a slow rhythmic tremor of the contralateral hand and foot, increased...
D
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medmcqa_46
Following are the features of cretinism, except
[ "Pot — belly", "Idiotic look", "Normal intelligence", "Stunted growth" ]
null
C
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medmcqa_47
Typhus, spotted fever, and scrub typhus share which of the following manifestations of disease?
[ "Short incubation period (<48 h)", "Fever, rash, and rickettsemia", "Common vector", "Similar geographic distribution" ]
Typhus, spotted fever, and scrub typhus are all caused by rickettsiae (R. prowazekii, R. rickettsii, and R. tsutsugamushi, respectively). Clinically, the diseases have several similarities. Each has an incubation period of 1 to 2 weeks followed by a febrile period, which usually includes a rash. During the febrile peri...
B
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medmcqa_48
Obstructive azoospermia is characterized by?
[ "FSH & LH levels normal", "Increased FSH and Low LH", "Increased LH and Low FSH", "Both, FSH and LH low" ]
Ans. A. FSH and LH levels are normalA normal testicular biopsy in an azoospermic man with a normal FSH level suggests obstruction of the vas.Obstruction (Obstructive Azoospermia)Approximately 6% of men have blockages in the genital tract that prevent the passage of sperm between the testes to the penis and result in ab...
A
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medmcqa_49
Features of carotid-cavernous fistula include
[ "Dilated superior ophthalmic vein on CT scan", "Blood in the Schlemm's canal", "Proptosis of contralateral eye suggests bilateral carotid-cavernous fistula", "Traumatic fistula rarely close spontaneously" ]
* With anterior drainage through orbit carotid cavernous fistula produce proptosis, diplopia, glaucoma and corkscrew, aerialized conjunctival vessels carotid-cavernous fistula results from an abnormal communication between the aerial and venous systems within the cavernous sinus in the skull. It is a type of aeriovenou...
C
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medmcqa_50
False regarding the foreign body of oropharynx is ?
[ "Impacted foreign bodies most often lodge in the soft tissue at the base of tongue", "Food paicles are the most common oropharyngeal foreign bodies in children", "Clinical hypopharyngeal foreign bodies are amenable to clinical examination", "Endoscopy and MDCT are used in the diagnosis" ]
Ans. is 'b' i.e., Food paicles are the most common oropharyngeal foreign bodies in children Oropharyngeal foreign bodies Most ingested foreign bodies do not impact in the oropharynx Sharp foreign bodies like fish and chicken bones most commonly impact in the soft tissues at the base of the tongue. Hypopharyngeal foreig...
B
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medmcqa_51
A 50 year old man known to have diabetes since many years presents with poor urinary stream, hesitancy, difficulty in micturition and failure to void completely. What is he most likely suffering from?
[ "BPH", "UTI", "Atonic bladder", "Autonomic neuropathy" ]
The above mentioned clinical features of poor urinary stream, hesitancy, difficulty in micturition and failure to void completely are consistent with both BPH and autonomic neuropathy. Since the the patient is diabetic, he would most likely be suffering from diabetic autonomic neuropathy. Ref: Harrison's Principles Of ...
D
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medmcqa_52
True about iron absorption are all, except ?
[ "Major site of absorption is duodenum", "Stored as Ferritin", "Absorbed in ferrous form", "Pancreatic secretions improves the absorption" ]
Ans. is 'd' i.e., Pancreatic secretions improves the absorption Iron absorption Iron is absorbed from upper small intestine mainly duodenum. In diet iron occurs in two forms, haeme iron and inorganic (non-haeme) iron. Haem iron is better absorbed than inorganic iron, but the major fraction of diet is inorganic iron. In...
D
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medmcqa_53
If the 3rd supralabial scales are large and touching the eye and nasal shield, the snake may be
[ "Krait", "Pit viper", "Saw scaled viper", "Cobra" ]
If the head scales are large, it may be poisonous or non poisonous. Look for the 3rd supra labial and if it is touching the eye and the nasal shield, it is poisonous (cobra or coral snake) Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 511
D
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medmcqa_54
Concurrent list includes
[ "Census collection", "International health relations", "Vital statistics", "Immigration" ]
Ans. is 'c' i.e., Vital statistics
C
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medmcqa_55
Ten readings of BP taken before and after treatment is studied by-
[ "Paired 't' test", "'Z' test", "Students 't' test", "Correlation test" ]
Ref:Parks 23rd edition pg 852 Here a Quantitative measurement is taken. But there is only a single group( before and after intervention.) so., paired T test is used . Tests of significance: Qualitative: Chi- square : 2 or more than 2 groups Mc Nemar test : 1 group. ( before and after intervention) Quantitative: Paired ...
A
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medmcqa_56
Number of ATPs formed per cycle of TCA -
[ "10", "24", "8", "30" ]
Ans. is 'a' i.e., 10o Every turn of TCA cycle produces -i) 10 A TPs - If starting meterial is considered acetyl CoAii) 12 5 ATPs - It starting material is considered pyruvate.Energetics of TCA cycleso One turn of the TCA cycle, starting with acetyl CoA produces 10 ATPs. When the starting molecule is pyruvate, the oxida...
A
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medmcqa_57
Orthodontic treatment in management of cleft lip and palate is usually carried out in:
[ "Deciduous dentition and mixed dentition", "Mixed dentition", "Mixed and permanent dentition", "Permanent dentition" ]
Many children with cleft lip and palate require orthodontic treatment. Orthodontic treatment is commonly carried out in two phases: Mixed dentition (8 - 10 years) – to expand the maxillary arches as a prelude to alveolar bone graft. Permanent dentition (14 -18 years) – to align the dentition and provide a normal funct...
C
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medmcqa_58
Choristoma is -
[ "Normal tissue in abnormal site", "Normal tissue in excess at normal site", "Abnormal tissue at any site", "None of the above" ]
null
A
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medmcqa_59
Perjury is :
[ "Willful utterance of falsehood", "An act comitted within cou premises", "Failure to sign summons", "Failure to appear as a witness" ]
A i.e. Willful utterance of falsehood
A
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medmcqa_60
All are chest x-ray signs of pulmonary embolism except
[ "Westermark's sign", "Felson's sign", "Palla's sign", "Monod sign" ]
Monod sign - Aspergilloma.
D
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medmcqa_61
Indium labelled WBC scan is used to locate:
[ "Occult malignancy", "Occult bleeding", "Abscess", "Aneurysm" ]
Inflammatory process and abscess which are difficult to locate with routine scanning can be diagnosed by Radionuclied scanning. They are, 1. Technitium 99 scan 2. Gallium 67 citrate scan 3. Indium 111 scan Ref: Harrison, Edition-18, Page-163.
C
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medmcqa_62
Most common cause of anorectal abscess is -
[ "Inflammation of anal gland", "Folliculitis", "Inflammation of rectal mucosa", "Rectum" ]
null
A
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medmcqa_63
Which of the following drug is commonly used for narco analysis
[ "Atropine sulfate", "Scopolamine hydrochloride", "Phenobarbitone", "Morphine" ]
Refer psychiatry and law 447 Controlled administration of intravenous hypnotics to obtain information from subject who are unable or unwilling to provide it otherwise, known as narcoanalysis or narcosynthesis Drugs used for narcoanalysis are: Ethanol Scopolamine Temazepam Barbiturates like thiopentone and amobarbitol T...
B
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medmcqa_64
About skull of newborn, all of the following statements are TRUE, EXCEPT:
[ "Paranasal sinuses are absent", "Absent diploic spaces", "Middle ear ossicles are of same size as in adults", "Mastoid process is not completely formed" ]
All paranasal sinuses are present to varying degrees in newborn. Ethmoid sinuses are first to fully develop followed in order by maxillary, sphenoid and frontal sinuses. The auditory ossicles malleus, incus and stapes reach the adult size as early as sixth month of fetal life. The oval window and round window are the s...
A
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medmcqa_65
Which of the following conditions is associated with hypocalcemia?
[ "a) Medullary Ca thyroid", "b) Squamous Ca lung", "c) Tumor lysis syndrome", "Both 'a' and 'c'" ]
Medullary carcinoma of the thyroid (MTC) originates in the parafollicular C cells of the thyroid gland. These C cells produce calcitonin. It acts to reduce blood calcium (Ca2+), opposing the effects of parathyroid hormone (PTH). Tumor lysis syndrome refers to the constellation of metabolic disturbances that may be seen...
D
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medmcqa_66
Which of the following agent of meningitis can grow on chocolate agar but not on blood agar?
[ "Neisseria meningitides", "Haemophilus influenzae", "Moraxella catarrhalis", "Escherichia coli" ]
H influenzae growns in the presence of factor X and V avaliable in blood. Factor V is intracellular hence not available easily. Also sheep blood contain NAdase thatdestroys factor V. In chocolate agar, blood is poured in molten agar which inactivates NADase and lyses RBCs releasing factor V.
B
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medmcqa_67
Ponderal index for a malnourished child is ____________
[ "< 1", "< 2", "< 4", "< 6" ]
PI is calculated from measurements of body mass (M) and height (H). PI = the cube root of body weight divided by height, where body mass is in kilograms and height in meters. Be aware that there are variations of this formula which are also sometimes called the Ponderal Index. Ref.nelson 20th edition page 339 nutrition...
B
medmcqa
medmcqa_68
Object permanence milestone develop at?
[ "6 months", "9 months", "12 months", "15 months" ]
Ans. is 'b' i.e., 9 month
B
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medmcqa_69
Drug for long term treatment of paial seizure is?
[ "Valproate", "Carbamazepine", "Eptoin", "Phenobarbitone" ]
Ans. is 'b' i.e., Carbamazepine Carbamazepine is effective drug for long term treatment of GTcs & paial seizure advantage being furious side effect. Does of CBZ is 10-30 mg/kg/day in 2-3 divided doses. Phenobarbitone : Used in GTCS type below 1 year of age Because of development of hyperkinesia & learing disabilities a...
B
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medmcqa_70
Which of the following is a nonhereditary phakomatoses?
[ "Neurofibromatosis", "Sturge Weber syndrome", "Tuberous sclerosis", "Ataxia telangiectasia" ]
Ans BStruge Weber syndrome is the only acquired phakomatosis. Rest all major phakomatosis are inherited and most of them like NF1, NF2,Tuberous sclerosis are autosomal dominant while ataxia telengectasia is autosomal recessive.
B
medmcqa
medmcqa_71
A rickshaw tyre passed on a 8 year old child. Tyre marks were found on the body. This is an exmaple of :
[ "Percolated bruise", "Imprint abrasion", "Contusion", "Patterned bruise" ]
Imprint abrasion Real confusion in this question is between imprint abrasion and patterned bruising. In both imprint abrasion and patterned brusing there is mark or pattern of the object causing injury. Abrasion is caused by friction and/or pressure between the skin and some rough object or surface. For abrasions to oc...
B
medmcqa
medmcqa_72
Which of the following parameters adds predictive information regarding cardiovascular risk stratification and the measurement of serum cholesterol?
[ "Anti-chlamydia pneumoniae antibodies", "C-reactive protein", "Homocysteine", "Plasminogen activator inhibitor 1" ]
Recent studies have demonstrated that markers of inflammation correlate with coronary risk and that inflammation plays a role in atheromatous plaque instability. Elevations of C-reactive protein, (CRP) identify patients at increased risk of myocardial infarction (MI) and poor outcome of acute coronary syndromes. Measur...
B
medmcqa
medmcqa_73
All of the following are true about Broca's aphasia except:
[ "Lesion lies in frontal lobe", "Fluency is impaired", "Neologisms are absent", "Repetition is preserved" ]
Answer is D (Repetition is preserved): Repetition is impaired in both Broca's and Wernicke's aphasias. Aphasias are disorders of understanding, thought and word finding. Anomie aphasia : Remember : Most common language disturbance seen in - Head trauma = Anomie ApahsiaQ Most common language disturbance seen in - Metabo...
D
medmcqa
medmcqa_74
Most common visually debilitating cataract in children:
[ "Blue dot cataract", "Zonular cataract", "Anterior polar cataract", "Posterior polar cataract" ]
Zonular cataract is most debilitating cataract in children. Types of congenital cataract Punctate: Blue Dot Cataract (Asymptomatic). Sutural cataract : Y suture opaque, nuclear cataract. Zonular cataract/Lamellar Most Common visually significant cataract (riders). Fusiform Nuclear Coronary Anterior polar Lamellar Catar...
B
medmcqa
medmcqa_75
Peripheral aerial disease can be treated by all, EXCEPT:
[ "Pentoxifylline", "Cilostazol", "Sildenafil", "Percutaneous angioplasty" ]
Pentoxifylline, a xanthine derivative, is thought to act by reducing the viscosity of blood, allowing it to flow more easily through paially obstructed areas. Cilostazol, a phosphodiesterase type 3 (PDE3) inhibitor, is poorly understood, but may have selective antiplatelet and vasodilating effects. Both drugs have been...
C
medmcqa
medmcqa_76
Alveoli are kept dry because of
[ "Surfactants", "Glycorprotiens", "Buffers Bohr's", "Effect" ]
Pulmonary surfactant is a mixture of lipids and proteins which is secreted into the alveolar space by epithelial type II cells. The main function of surfactant is to lower the surface tension at the air/liquid interface within the alveoli of the lung. Ref: guyton and hall textbook of medical physiology 12 edition page ...
A
medmcqa
medmcqa_77
Honeycomb histological appearance is seen in:
[ "Adenoid cystic carcinoma", "Primordial cyst", "Burkitt’s lymphoma", "Pernicious anemia" ]
Adenoid cystic carcinoma is composed of myoepithelial cells and ductal cells which have a varied arrangement. Morphologically, three growth patterns have been described: cribriform (classic), tubular, and solid (basaloid). The tumors are categorized according to the predominant pattern.  The cribriform pattern shows ba...
A
medmcqa
medmcqa_78
What is the type of Galactosemia cataract?
[ "Snowflake", "Oil drop", "Blue dot", "Polychromaticlustre" ]
Ans. is 'b' i.e., Oil drop DiseaseCataractMyotonic DystophyChristmas tree cataractWilson's disease, chalcosisSunflower cataractDM, Down's SyndromeSnowflake cataractAtopic dermatitisBlue dot cortical cataract, posterior subcapsular cataractCongenital rubellaNuclear cataractGalactosemiaOil drop cataractComplicated catara...
B
medmcqa
medmcqa_79
YAG laser is used in
[ "Retinal detachment", "diabetes", "Refractive errors", "After cataract" ]
Posterior capsular opacity/after cataract treated by ND-YAG capsulotomy A Yag capsulotomy is a special laser treatment used to improve your vision after cataract surgery. It is a simple, commonly performed procedure which is very safe. During your cataract operation, the natural lens inside your eye that had become clo...
D
medmcqa
medmcqa_80
The thickness of thin rubber dam is:
[ "0.002 inch", "0.004 inch", "0.006 inch", "0.2 inch" ]
null
C
medmcqa
medmcqa_81
Gene therapy is used for
[ "All of the below", "Sickle cell anemia", "Thalassemia", "Cystic fibrosis" ]
Gene transfer is a novel area of therapeutics in which the active agent is a nucleic acid sequence rather than a protein or small molecule. Most gene transfers are carried out using a vector or gene delivery vehicle because delivery of naked DNA or RNA to a cell is an inefficient process. More clear-cut success has bee...
A
medmcqa
medmcqa_82
A 18-year-old female presented with severe headache of sudden onset. On CT scan, a diagnosis of subarachnoid hemorrhage is made. Most common cause is: Al 06; UP 10, 12
[ "Hypeension", "Berry aneurysm rupture", "Basilar aery rupture", "Subdural venous sinuses rupture" ]
Ans. Berry aneurysm rupture
B
medmcqa
medmcqa_83
Under normal circumstances, left ventricular shoening fraction (LVSF) is:
[ "20%", "40%", "60%", "75%" ]
Left ventricular shoening fraction (LVSF) is the percentage of shoening of LV fibers from their end-diastolic length (EDL). EDL and ESL are end-diastolic length and end-systolic length, respectively. Normal LVSF = 35%-40%. The value of LVSF decreases in LV failure.
B
medmcqa
medmcqa_84
Best predictor for coronary aery disease -
[ "HDL", "LDL", "VLDL", "Chylomicron" ]
LDL is the best indicater of the risk for CAD.high level of LDL is the indicater
B
medmcqa
medmcqa_85
A female, Lalita, aged 26 yrs accidentally takes 100 tablets of paracetamol. What is the treatment of choice -
[ "Lavage with charcoal", "Dialysis", "Alkaline diuresis", "Acetylcysteine" ]
Ans. is 'd' i.e Acetylcysteine "In cases of moderate to severe poisoning N acetylcysteine (Mucomyst) should be given orally. It is most effective when given within 16-24 hours of overdosage. It prevents hepatic damage". - Parikh
D
medmcqa
medmcqa_86
You are performing a breast examination in the surgery clinic. In addition to the breast tissue examination, what other region is critical to complete the palpation of mammary tissue?
[ "Supraclavicular region", "Subclavicular region", "Axillary region", "Interscapular region" ]
This is not an examination of lymph node. The tail of Spence is located in the axillary area and contains mammary tissue.The axillary tail of Spence extends laterally across the anterior axillary fold. The upper outer quadrant of the breast contains a greater volume of tissue than do the other quadrants. The breast has...
C
medmcqa
medmcqa_87
Monthly repo to be submitted in RCH program to monitor efficiency include all except -
[ "Minimum 3 ANC visits", "Minimum 2 PNC vistas", "Number of LBW babies recorded", "Number of women taking treatment of anemia" ]
Ans. is 'b" i.e., Minimum 2 PNC visits
B
medmcqa
medmcqa_88
Causative agent of syphilis-
[ "Treponema pertunae", "Treponema endemicum", "Treponema corateum", "Treponema pallidum" ]
Ans. is 'd' i.e., Treponema pallidum SpirocheteSpeciesDiseaseTreponemaPallidumEndemic umPertunaeCarateumSyphilisBejelYawsPintaBorretiaBurgdorferiRecurrentisVincentiLyme diseaseRelapsing feverVincent anginaLeptospiraInterrogansWeil's disease
D
medmcqa
medmcqa_89
Post delivery uterus becomes pelvic organ by
[ "48hours", "1week", "2weeks", "6weeks" ]
Following delivery, the fundus lies about 13.5 cm (5 1/2") above the symphysis pubis. During the first 24 hours, the level remains constant; thereafter, there is a steady decrease in height by 1.25 cm (1/2") in 24 hours, so that by the end of the second week the uterus becomes a pelvic organ. The rate of involution the...
C
medmcqa
medmcqa_90
Hypokalemia is not present in :
[ "Vomiting", "Diarrhoea", "Patient on diuretics", "Chronic renal failure" ]
null
D
medmcqa
medmcqa_91
Apnoea in infants is –
[ ">10 sec", ">20 sec", ">30 sec", ">40 sec" ]
null
B
medmcqa
medmcqa_92
Mechanism of action of an oral contraceptive containing a combination of oestrogen-progestin is the following except-a) Inhibition of ovulationb) A change in the cervical mucusc) Inhibition of motility of the uterine tubesd) Inhibition of motility of spermse) Changes in the uterine endometrium
[ "ab", "cd", "bd", "ac" ]
null
B
medmcqa
medmcqa_93
Which of the following is most common among all psychiatric disorders?
[ "Depression", "Anxiety disorder", "OCD", "Delusional disorder" ]
Anxiety disorder are the most common among all psychiatric disorders and among the group of anxiety disorders, Phobias are the most common.
B
medmcqa
medmcqa_94
Moderate excercise tachypnea is due to stimulation of which receptor
[ "Proprioception", "J receptor", "Lung receptor", "Baro receptor" ]
Inspiratory neurons are stimulated by proprioception from joints and muscles.
A
medmcqa
medmcqa_95
Cerelas are deficient in?
[ "Alanine", "Lysine", "Methionine", "Cysteine" ]
Cereal proteins are poor in nutritive value being deficient in the essential amino acid,lysine.REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-578
B
medmcqa
medmcqa_96
True about neoplastic colorectal polyps ?
[ "Sessile polyps > 1 cm is malignant", "MC site is colon and rectum", "Adenomatous polyp is premalignant", "All" ]
Ans. 'a' i.e. Sessile Polyp> 1 cm is malignant; 'b' i.e. MC site is colon and rectum; 'c' i.e. Adenomatous polyp is premalignant Polyps are much more common in the large intestine than in the small intestine and more common in the rectosigmoid colon than the proximal colon.
D
medmcqa
medmcqa_97
In aortic dissection, blood enters in -
[ "Intima", "Media", "Adventitia", "Any of the above layer" ]
Aortic dissection Aortic dissection is a catastrophic illness characterized by dissection of blood between and along the laminar planes of aortic media. Blood enters inside the arterial wall (in the media layer) and leads to the formation of blood-filled channels within the aortic wall, which often ruptures outward c...
B
medmcqa
medmcqa_98
1711. All are true regarding Anaemia of Chronic Diseases, except -
[ "Decreased serum Fe", "Decreased Ferritin", "Decreased Total Fe Binding Capacity", "Increased Bone Marrow Fe" ]
<p>Serum ferritin levels are increased in anemia of chronic disorder & is the most distinguishing feature between true iron deficiency anemia & iron deficient erythropoiesis in anemia of disease.</p><p>A defect in transfer of iron from macrophages to the developing erythroid cells in the marrow leads to reduced availab...
B
medmcqa
medmcqa_99
Prunning of pulmonary aeries is seen in -
[ "Pulmonary hypeension", "Chronic bronchitis", "Pulmonary infections", "Pulmonary transplant" ]
Pulmonary Aerial Hypeension is characterised by enlargement of main pulmonary trunk and Right and Left main pulmonary aeries with dispropoinately small peripheral blood vessels. This is referred to as prunning of pulmonary aeries.. * elevated cardiac apex due to right ventricular hyperophy * enlarged right atrium * pro...
A
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