query stringlengths 1 1.57k | pos stringlengths 1 22.5k | idx int64 0 161k | task_name stringclasses 1
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Which of the following is false about glutathione | Glutatione suppress the formation of methemoglobin.
Rest others are functions of glutathione.
It is a important intracellular reducing substance. | 8,800 | medmcqa_train |
Which is the most common site for ectopic testis | Most common site for undescended testis is inguinal canal | 8,801 | medmcqa_train |
Amyloid is detected by staining with all except | (B) Alcain Blue # Amyloid fibrils are idenfied in biopsy or necropsy tissue sections> The systemic amyloidosis offer a choice of bipsy sites; abdominal fat aspirates or renal or rectal biopsies are often perform ed.> Microscopically, amyloid depsotis stain pink with the hematoxylin-eosin stain and show metachromasia wi... | 8,802 | medmcqa_train |
The recommended hemoglobin level in male patients with polycythemia rubravera to avoid thrombotic episodes is: | Polycythemia rubra vera It is an indolent disorder and thrombosis is the most significant complication. Maintenance of the hemoglobin level at 140 g/L (14 g/dL; hematocrit Phlebotomy : serves to help this aim. Phlebotomy reduce hyperviscosity by bringing the red cell mass into the normal range. Periodic phlebotomies ma... | 8,803 | medmcqa_train |
In a patient with the burn wound extending into the superficial epidermis without involving the dermis would present with all of the following except | .a. Paial thickness burns: It is either first or second degree burn which is red and painful, often with blisters b. Full thickness burns: It is third degree burns which is charred, insensitive, deep involving all layers of the skin.Effects of Burn Injury 1. Shock due to hypovolaemia. 2. Renal failure. 3. Pulmonary oed... | 8,804 | medmcqa_train |
All of the following statements about Kawasaki disease are true, Except: | Answer is C (Thrombocytopenia) : Kawasaki disease is associated with thrombocytosis and not thrombocytopenia. | 8,805 | medmcqa_train |
Nitric oxide is a potent vasodilator. Where is it produced from? | Nitric oxide, known as the 'endothelium-derived relaxing factor', or 'EDRF'. Endothelial cells contain the constitutive form of nitric oxide synthase, which produces moderate amounts of nitric oxide by metabolizing L-arginine. The endothelium of blood vessels uses nitric oxide to signal the surrounding smooth muscle to... | 8,806 | medmcqa_train |
Primary level of prevention means: March 2013 (g) | Ans. B i.e. Action taken prior to the onset of disease, which removes the possibility that a disease will ever occur | 8,807 | medmcqa_train |
Four A's of schizophrenia was described by: MP 09 | Ans. Eugene Bleuler | 8,808 | medmcqa_train |
All of the following results in central nervous system manifestation in chronic renal failure, EXCEPT: | Hypocalcemia can occur in chronic renal failure patients. But CNS manifestation of hypocalcemia in uremic patients are relatively rare because parathyroid hormone levels are elevated and the calcium concentration in the brain is high. Rarely signs of peripheral nerve hyperexcitability occur in these patients because hy... | 8,809 | medmcqa_train |
Which of the following statement about DDT is false- | Ans. is `a' i.e., Immediately kills the prey DDT (Dichloro-diphenyl-trichloroetheine) o DDT is an amorphous white powder. o Para-para isomer is the most active fraction --> contains 70-80% ofpara-para isomers. o It is primarily a contact poison. o It acts on CNS of insects and causes paralysis of legs and wings, convul... | 8,810 | medmcqa_train |
All are true regarding METHANOL poisoning except | Fomepizole is a alcohol dehydrogenase inhibitor not a aldehyde dehydrogenase inhibitor . visual disturbances due to formic acid. Ref: KD Tripathi 8th ed. | 8,811 | medmcqa_train |
An 18-year-old male presented with acute onset descending paralysis of 3 days duration. There is also a history of blurring of vision for the same duration. On examination, the patient has quadriparesis with areflexia. Both the pupils are non-reactive. The most probable diagnosis is - | Botulism is caused by neurotoxins of Clostridium botulinum, which are extremely potent & cause disease after ingestion of even picogram amounts. Its classical form is an acute onset of bilateral cranial neuropathies associated with symmetric descending weakness.The toxin causes predominantly bulbar & ocular palsies(dif... | 8,812 | medmcqa_train |
The following set of findings is seen in Disseminated Intravasular Coagulation (DIC): | Common findings in Disseminated Intravascular Coagulation (DIC) include Prolonged Prothrombin Time (PT) and/or Prolonged Paial Thromboplastin Time (PTT), thrombocytopenia, presence of schistocytes and increased levels of fibrin degradation products (FDP). Ref: Harrison's Principles of Internal Medicine, 17th Edition, P... | 8,813 | medmcqa_train |
Which of the following is most characteristic of diabetic neuropathy? | Diabetic neuropathy usually presents as peripheral polyneuropathy, usually bilateral, including symptoms of numbness, paresthesia, severe hyperesthesia, and pain. Impairment of proprioceptive fibers can lead to gait abnormalities and Charcot's joints. Mononeuropathy is less common and is often spontaneously reversible.... | 8,814 | medmcqa_train |
The Loop diuretic acts at | (C) Ascending loop # Loop diuretics: are diuretics that act on the ascending loop of Henle in the kidney.> They are primarily used in medicine to treat hypertension and edema often due to congestive heart failure or renal insufficiency.# Mechanism of action:> Loop diuretics act on the Na+-K+-2CI' symporter (cotransport... | 8,815 | medmcqa_train |
Neointimal hyperplasia causes vascular graft failure as a result of hyperophy of | Vascular injury leading to endothelial cell loss or dysfunction stimulates smooth muscle cell growth and associated matrix synthesis. Healing of injured vessels involves the migration of smooth muscle cells or smooth muscle cell precursor cells into the intima. Here these cells proliferate, and synthesize ECM in much t... | 8,816 | medmcqa_train |
Increased plasma concentration of calcium is associated with: March 2009 | Ans. C: Primary hyperparathyroidism The most common cause of high calcium levels (hypercalcemia) is an overproduction of parathyroid hormone, or hyperparathyroidism. Hyperparathyroidism tends to be more common in women, and occurs in 25 out of every 100,000 individuals. Hyperparathyroidism can be the result of all four... | 8,817 | medmcqa_train |
Most sensitive investigation for abdominal trauma in a hemodynamically stable patient is- | Ans. is 'a' i.e., CT Scan Investigations to rule out abdominal injury in trauma patient* Investigations are driven by the cardiovascular status of the patient.* Blood loss into the abdomen can be subtle and there may be no clinical signs (blood is not an irritant and may not initially cause any abdominal pain). If stab... | 8,818 | medmcqa_train |
Which of the following is a persistant biochemical marker of rickets - | Serum alkaline phosphatase is a consistent marker and is raised in all types of rickets. | 8,819 | medmcqa_train |
All are toxicities seen with Amiodarone therapy except - | Ans. is 'd' i.e., Productive cough Amiodarone is a class III antiarrhythmic drug and thus blocks potassium channel. It acts by increasing the action potential duration and effective refractory period.In spite of its present classification as class 3 drug, amiodarone also significantly blocks inactivated sodium channels... | 8,820 | medmcqa_train |
Which of the following statements regarding prezinamide is false | Ref-Katzung 10/e p775 Pyrazinamide is a first line antitubercular drug that can cause hyperuricemia and hepatotoxicity. Non gouty ahralgia is very common adverse etfect of this drug.Hyperuricemia per se is not the indication for discontinuation of pyrazinamide. | 8,821 | medmcqa_train |
Opioid agonist are ALE aEUR' | Ketamine | 8,822 | medmcqa_train |
All of the following statements about dislocation of the shoulder are true, except | B i.e. The commonest position for the head of the humerus to move into is the subspinous | 8,823 | medmcqa_train |
Exhumation can be ordered by | Ans. c (District magistrate) (Ref. Parikh FMT 6th ed., p 2.90)EXHUMATION# By exhumation is meant the lawful disinterment or digging out of buried body from the grave.# It is sometimes necessary for -- Identification- Determination of cause of death (foul play suspected)# As the Hindus who form majority cremate their de... | 8,824 | medmcqa_train |
Which of the following pa of the colon has maximum basic electrical rhythm (BER)? | Basic electrical rhythm (BER) is initiated by the interstitial cells of Cajal, stellate mesenchymal pacemaker cells. The rate of the BER is about 4/min in the stomach. It is about 12/min in the duodenum and falls to about 8/min in the distal ileum. In the colon, the BER rate rises from about 2/min at the cecum to about... | 8,825 | medmcqa_train |
Major pa of the skin of pinna is supplied by: | D i.e. Great auricular | 8,826 | medmcqa_train |
As per the World Health Organisation guidelines, iodine deficiency disorders are endemic in a community if the prevalence of goiter in school age children in more than - | Epidemiological criteria for assessing severity of IDD. Total goitre Rate (TGR) : Grade I + Grade II Median urinary iodine excretion. Thyroid volume (Ultrasound). Salt iodine content Criteria for sustainable elimination of IDD. Median Urinary Iodine Excretion 100 mcg/L Level of iodization: 1) 30ppm at production level ... | 8,827 | medmcqa_train |
Organophosphate insecticides are all except - | Organochloride compounds: DDT Lindane Methoxychlor HCH Chlordane Dieldrin Aldrin Toxaphene Kepone Mirex Organophosphorous compounds: Chlohion Diazinon Dioxathion Dimethoate EPN Malathion (OMS-1) Fenthion (OMS-2) Methyl parathion Parathion Ronnel Trichlorfon Dichlorvos Abate (OMS-786) Naled Gardona Chlorpyrifos Fenitrot... | 8,828 | medmcqa_train |
Medium used to isolate M. tuberculosis contains all except ? | Ans. is 'c' i.e., Bromothymol blue Lowenstein-Jensen Medium (LT medium)LJ medium consists of mineral salts, asparagine, glycerol, malachite green and hen's egg.The malachite green prevents the growth of other microorganism on medium.It is used as a primary isolation medium for mycobacteria.Mineral salts are monopotassi... | 8,829 | medmcqa_train |
The biological indicator used in various autoclave machines for quality check is- | METHOD Sterlization control Hot air oven Autoclave Filtration Ionizing radiation (cold sterilization) Ethylene oxide Plasma sterilization Clostridium tetani non toxigenic strain, B.subtilis sub sp. niger B.Stearothermophillus Brivundimonas dimunata B. Pumilus B.Globigi B.Stearothermophillus | 8,830 | medmcqa_train |
Disease elimination is helped by- | Ans. is 'a' i.e., Herd immunity o If the herd immunity is sufficiently high, the occurrence of an epidemic is regarded as highly unlikely.o If that high level of immunity is maintained and stepped up, by an on-going immunization programme, to the point where the susceptible persons are reduced to a small proportion of ... | 8,831 | medmcqa_train |
In retinitis pigmentosa, following are true except – | ERG is markedly subnormal in retinitis pigmentosa.
There is perivascular pigment deposition, pale- waxy disc and marked attenuation (narrowing) of retinal vessels | 8,832 | medmcqa_train |
Aminoglycoside class of drugs causes hearing loss by damaging? | Ans. is 'b' i.e., Outer hair cells of basal turn o Aminoglycosides affect exclusively outer hair cells, paicularly of basal coil of cochlea. | 8,833 | medmcqa_train |
A six month old infant fed totally on cow's milk has been brought with bleeding spots, anaemia, fever and generalised tenderness. On examination, there were swelling in both the lower extremities and the blood count was normal. The most likely diagnosis is? | Ans. is 'd' i.e., ScurvyExclusive feeding on Cow's milk in a 6 months infant with anemia, bleeding, fever and generalized tenderness suggest the diagnosis of scurvy.Cow's milk does not contain sufficient amount of Vitamin C. On the other hand breast milk contains sufficient Vitamin C.Clinical manifestations of scurvy o... | 8,834 | medmcqa_train |
Which of the following is not true in obstructive lung disease? | Ans. (b) TLC |Ref: Harrison 19th ed. / 306e-2fParameterObstructiveRestrictiveFEV1REDUCEDREDUCEDTLCNORMAL/ INCREASEDREDUCEDFVCREDUCEDREDUCEDFEV1/FVC RATIOREDUCEDNORMAL/INCREASEDRESIDUAL VOLUMEINCREASEDDECREASED | 8,835 | medmcqa_train |
Normal CD4:CD8 ratio is | Ans. b (2:1) (Ref. Harrison's Principles of Internal Medicine 16th ed., 2019)CD4/CD8 Ratio# The ratio of 2:1 found in normal tissues.# In HIV infection the CD4 count is often decreased and the CD8 count increased so the ratio might 'invert', that is become less than 1.AIDS Diagnosis:* < 200 CD4 count,* HIV Positive wit... | 8,836 | medmcqa_train |
Which group of streptococcus grow at > 60degC - | Option 1, 2, 3 Heat tolerance test (60oC) is negative for Group A, B, C Streptococci. Option 4 Enterococcus is heat resistant. Enterococcus grows in presence of 6.5% NaCl, pH 9.6 and temperature >55oC which differentiate it from Group D streptococci. | 8,837 | medmcqa_train |
Which of following are associated with external oblique muscle -a) Pouparts ligamentb) Lacunar ligamentc) Superficial inguinal ringd) Conjoint tendone) Cremaster muscle | Internal oblique forms cremasteric muscle. Internal oblique and transversus abdominis form the conjoint tendon. Poupart's ligament, lacunar ligament, pectineal ligament, superficial inguinal ring, and external spermatic fascia are all formed by external oblique muscle. | 8,838 | medmcqa_train |
IgE is secreted by - | IgE is synthesised by plasma cells. Monomers of IgE consist of two heavy chains (e chain) and two light chains, with the e chain containing 4 Ig-like constant domains Reff: Ananthanarayanan & Panikers textbook of microbiology 9th edition pg:136 | 8,839 | medmcqa_train |
A 25 year old married male presents with infeility. He had undergone retroperitoneal lymphnode disection at age of 15 years for embryonal carcinoma of right testis. Semen analysis shows-quantity-0.5 ml, no. sperm, no fructose. Biopsy of testis shows normal spermato genesis. Best treatment here would be ? | Ans. is 'c' i.e., Microtesticular Aspiration and intra-cytoplasmic injection Absence of sperms in presence of normal spermatogenesis along with absence of fructose is suggestive of an obstruction in the ejaculatory duct (as described in previous chapter - Prostate & seminal vesicles) "Sperm aspiration techniques are in... | 8,840 | medmcqa_train |
The lamina propria, a layer of dense connective tissue is: | The lamina propria may attach to the periosteum of the alveolar bone , or it may overlay the submucosa. | 8,841 | medmcqa_train |
Drug which is used in lie detection (truth serum) | Hyoscine or scopolamine and thiopentone sodium are the drugs used in lie detection .they are considered as truth serum .under CNS depression it is implied that the patient usually tells the truth Ref: Goodman Gillman 11th ed pg 231-232 | 8,842 | medmcqa_train |
Test for allergic rhinitis - | Ans. is 'c' i.e.. Nasal Smear o A nasal smear can sometimes be helpful for establishing the diagnosis of allergic rhinitis.o The presence of eosinophils is consistent with allergic rhinitis. | 8,843 | medmcqa_train |
TRUE about normal curve is all, EXCEPT: | Normal or Gaussian distribution has the following features: Bell shaped Symmetrical about the mean Mean, mode and median coincides Ref: Medical biostatistics, 1st edition pg: 126 | 8,844 | medmcqa_train |
The Ducts of Bellini are typically seen in | Inderbir Singh's Human Histology Sixth edition Pg 304 The space between renal columns constitute ducts of bellini | 8,845 | medmcqa_train |
In apoptosis which is/are involved | Cytochrome c is a component of the electron transpo chain in mitochondria. ... Cytochrome c is also involved in initiation of apoptosis. Upon release ofcytochrome c to the cytoplasm, the protein bindsapoptotic protease activating factor-1 (Apaf-1).which is very impoant for cellular apoptosis Ref guyton and hall textboo... | 8,846 | medmcqa_train |
Maximum pressure in left ventricle is seen in which phase of cardiac cycle ? | Ans. is 'b' i.e., Ventricular ejection During ventricular ejection phase, when the steeply rising left ventricular pressure exceeds the aoic pressure (120 mm Hg), it is able to push open the aoic valve and eject the blad into the aoa, making the onset of ventricular ejection. PHASE OF CARDIAC CYCLE A cardiac cycle refe... | 8,847 | medmcqa_train |
A 4-year-old female brought to the casualty department with multiple fractured ribs, and inconspicuous history from parents. On examination show multiple bruises and healed fractures. The probable diagnosis is - | child abuse have certain characteristic features :
Inflicted fractures of the shaft are more likely to be spiral rather than transverse.
A classic finding is a chip fracture in which a corner of the metaphysis of a long bone is torn off with damage to epiphysis and periosteum.
Bruises, Petechiae and Ecchymosis... a... | 8,848 | medmcqa_train |
Which of the following statements is TRUEregarding spermicides found in vaginal foams, creams, and suppositories? | All spermicides contain an ingredient, usually nonoxynol-9, that immobilizes or kills sperm on contact. Spermicides provide a mechanical barrier and need to be placed into the vagina before each coital act. Their effectiveness increases with increasing age of the women who use them, probably due to increased motivation... | 8,849 | medmcqa_train |
Sickness benefit under ESI is available for a period- | Ans. is 'd' i.e., 91 days Sickness benefit under ESI* The sickness benefit is payable for a maximum period of 91 days in any continuous period of 365 days.* The daily rate is 50% of the average daily wage.* Extended sickness benefit - In this, persons suffering from certain long term diseases are entitled to Extended s... | 8,850 | medmcqa_train |
Black piedra is caused by ? | Ans. is 'a' i.e., Piedraia hoae Piedra is an asymptomatic superficial fungal infection of the hair shaft also known as trichomycosis nodu- laris. Black piedra is caused by Piedraia hoae, whereas white piedra is caused by pathogenic species of the Trichosporon genus, namely Trichosporon asahii, Trichosporon ovoides, Tri... | 8,851 | medmcqa_train |
Notching of ribs occurs in all, EXCEPT: | Hypothyroidism is not associated with rib notching. Inferior rib notching is much commoner than superior notching. Causes of inferior rib notching are coarctation of aoa, tetralogy of Fallot, superior venacava obstruction, Blalock-Taussig shunt, neurofibromatosis. Causes of superior rib notching include, hyperparathyro... | 8,852 | medmcqa_train |
Sense organ which is having efferent supply | Ans. is 'b i.e., Organ of coiAfferent (sensory) neurons carry information form sense organs to CNS (brain & spinal cord).Hair cells (in organ of coi) are the sensory recepors which are also innervated by efferent neurons. | 8,853 | medmcqa_train |
Local anaesthetic with prolonged action - | Ans. is 'd' i.e., Dibucaineo Dibucaine is the longest acting local anaesthetico Chlorprocaine is the shortest acting local anaesthetico Decreasing order of duration : - Dibucaine > Bupivacine = Tetracaine = Ropivacaine =Etidocaine > Prilocaine = Lignocaine = Mepivacaine = Cocaine > Procaine > Chlorprocaine. | 8,854 | medmcqa_train |
In . sided hemithorax on chest X-ray PA view what can be excluded: | A i.e. CCF Congestive cardiac failure is a condition which presents with B/L changes in chest X RayQ - so it can be excluded by seeing U/L hemithorax on chest X Ray, if it is normal.; | 8,855 | medmcqa_train |
The response to shock includes which of the following metabolic effects? | The biochemical changes associated with shock result from tissue hypoperfusion, endocrine response to stress, and specific organ system failure. During shock, the sympathetic nervous system and adrenal medulla are stimulated to release catecholamines. Renin, angiotensin, antidiuretic hormone, adrenocorticotropin, and c... | 8,856 | medmcqa_train |
Leukemoid reaction is seen in: | Acute infection Persistent neutrophilia of 30,000-50,000 cells/ul, or greater is known as leukemoid reaction. It is a term used to distinguish this degree of neutrophilia from leukemia. In a leukemoid reaction, the circulating neutrophils are mature and not cion ally derived. leukemoid reaction is seen in ACUTE INFECTI... | 8,857 | medmcqa_train |
Intracellular calcification begins in which of the following organelles? | Calcium may be deposited at sites of cell death, resulting in pathologic calcification. Initiation of intracellular calcification occurs in the mitochondria of dead or dying cells that accumulate calcium. | 8,858 | medmcqa_train |
Vasodilators in Meniers disease are useful because they: | Ans: c (Increase endolymph reabsorption)Ref: Dhingra E.N.T. 3rd/e p. 129 & 2nd/e p. 103One of the etiological factors for menier's disease is poor vascularity & poor absorption. Vasodilators improve vascularity and therby absorption. | 8,859 | medmcqa_train |
Froments test is used in | Froment's sign: the patient is asked to grip a card firmly between thumbs and index fingers; normally this is done using the thumb adductors while the interphalangeal joint is held extended. In patients with ulnar nerve injury or palsy, because the adductor pollicis is weak, the patient grips the card only by acutely f... | 8,860 | medmcqa_train |
Which of the following is a primary skin lesion? | Ans. C. Purpura* Purpura is a primary skin lesion.* Purpura is a condition of red-or purple-discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin usually secondary to vasculitis or dietary deficiency of vitamin C.Other Options:Option a: Crusts (scabs)... | 8,861 | medmcqa_train |
Germ cells appear in yolk sac at : | As early as the third week of gestation, primordial germ cells appear in the endoderm of yolk sac, and these migrate along the dorsal mesentry to the urogenital ridge by the eighth week Reference: Shaw's textbook of Gynaecology 15th edition page 27 | 8,862 | medmcqa_train |
Which of the following inhalational anaesthetic agent can cause hepatitis on repeated use? | Halothane causes hepatitis .It can also cause arrhythmia by making adrenaline more adrenogenic, i.e , Adrenaline Shows more adrenogenic action when halothane is used. Hence it should not be used in conditions where adrenaline is high ,i.e, pheochromocytoma | 8,863 | medmcqa_train |
Which of the following organism is biggest - | largest protozoal parasite of human Lives in large intestine Two stages- trophozoite and cyst (refer pgno:82 baveja 3 rd edition ) | 8,864 | medmcqa_train |
NOT of use in bipolar disorder: September 2012 | B i.e. Phenytoin Phenytoin It acts to suppress the abnormal brain activity seen in seizure by reducing electrical conductance among brain cells by stabilizing the inactive state of voltage-gated sodium channels. Aside from seizures, it is an option in the treatment of trigeminal neuralgia in the event that carbamazepin... | 8,865 | medmcqa_train |
An unstable and emotional temporary social group with a leader is known as – | Crowd and mob are related terms.
Crowd means a large number of persons gathered together. A crowd can be a crowd of random people doing different things or it may be people with one intent or purpose.
Mob is highly emotional crowd whose members have with one intent or purpose and are engaged in or are ready to engage i... | 8,866 | medmcqa_train |
Horse shoe kidney lies below the level of: | Inferior mesenteric aery | 8,867 | medmcqa_train |
Berkesonian bias is a selection bias which occurs in? | Ans. is 'b' i.e., Hospital-based studies | 8,868 | medmcqa_train |
How to avoid lipodystrophy in diabetics? | By changing the injection site every day, the incidence of lipodystrophy can be reduced significantly. Ref: KD Tripathi 8th ed. | 8,869 | medmcqa_train |
Which one of the following is a distinguishing feature of Edward's syndrome- | Ans. is 'd' i.e., Rocker bottom feet | 8,870 | medmcqa_train |
Which is not an antiviral drug: | dRef: KDT, 5th ed, p. 725, 783, 770 & 4th ed, p. 781 | 8,871 | medmcqa_train |
True about varicella vaccine is ? | Ans. is 'c' i.e., Avoid salicylates for 4-6 weeks A live attenuated varicella virus vaccine is safe and currently recommended between 12-18 months of age who have not had chicken pox.The vaccine is very immunogenic, sero-conversion occurs in 95% of children after a single dose.A duration of immunity is not known, but i... | 8,872 | medmcqa_train |
A young lady presents to your office with complain of copious vaginal discharge, but there is no cervical discharge on per speculum examination. Which of the following should be given for the management | Ans.'a'Metronidazole and fluconazole | 8,873 | medmcqa_train |
A 50 year old male patient complains of reduced mouth opening. Patient gives h/o RTA 1 week back. Submentovertex view x-ray was taken which revealed zygomatic arch fracture. Which of the following is true regarding the central beam in this x-ray- | Submentovertex view-
The central beam is perpendicular to the image receptor, directed from below the mandible toward the vertex of the skull (hence the name submentovertex), and centered about 2 cm anterior to a line
connecting the right and left condyles.
White and Pharoah, Oral radiology, ed 7th, pg-161 | 8,874 | medmcqa_train |
A 3 week old boy is brought to pediatrics emergency depament with projectile vomiting which is non bilious. On physical examination, firm, olive like mass is noted in the epigastric region post breastfeed and USG revealed thickened pyloric muscle. What is the most likely pathological finding if the pylorus muscle is bi... | The clinical symptoms, examination with USG findings of thickened pyloric muscle (>3mm) and elongated pyloric canal (>15mm) reveal the diagnosis as CHPS- congenital hyperophic pyloric stenosis which has hyperophy of circular muscle as depicted in option A Hyperophy-Small spindle-shaped (uterine smooth muscle cells) fro... | 8,875 | medmcqa_train |
Recall bias is most commonly associated with which study design- | .<p>1`when cases and controls are asked questions about their past history,it may be more likely for the cases to recall the existence of ceain events or factors,than the controls who are healthy individuals.cases may have a different recall of past events than controls.</p><p>ref;park&;s textbook of preventive and soc... | 8,876 | medmcqa_train |
In aluminum phosphide poisoning, which is NOT true: AIIMS 10; Punjab 11 | Ans. Accumulation of acetylcholine at NM junction | 8,877 | medmcqa_train |
To prevent synechiae formation after nasal surgery, which one of the following packings is the most useful - | Now, Mitomycin is being increasingly used for this purpose and is proving more useful.
Mitomycin is an anticancer agent that has shown to decrease scar formation after E.N.T. surgery.
It is an anti fibroblastic agent and thus prevents the wound healing and subsequent synechiae formation.
It is useful in preventing syne... | 8,878 | medmcqa_train |
A 75-year-old male patient is a known case of a pulmonary disease and is being treated with inhalational coicosteroids and daily theophylline.The patient was admitted to a hospital for urinary retention few days back and catheterization was done. However, the condition got complicated with urinary tract infection and t... | Theophylline is metabolized mainly by CYP1A2 hepatic microsomal enzyme. Inhibitors of CYP1A2: Cimetidine Ciprofloxacin Erythromycin Others are: - Aemisinin Atazanavir Enoxacin Ethinyl estradiol Fluvoxamine Furafylline Galangin Mexiletene Tacrine Thiabendazole Zileuton All these drugs inhibit the metabolism of theophyll... | 8,879 | medmcqa_train |
Most common cause of death in measles ? | Answer- D. PneumoniaMost commot cause of death in measles is pneumonia | 8,880 | medmcqa_train |
Earliest symptom of Congenital Glaucoma | Earliest but nonspecific symptom of Congenital Glaucoma is photophobia | 8,881 | medmcqa_train |
Etomidate causes all except ? | Ans. is 'a' i.e., Coronary insufficiency Etomidate produces little cardiovascular and respiratory depression --> Agent of choice for cardiovascular surgeries (bypass, aneurysms, valve surgery). Etomidate is the most cardiostable inducing agent. Etomidate has the highest incidence of nausea and vomiting amonst inducing ... | 8,882 | medmcqa_train |
Ranolazine is a? | ANSWER: (B) AntianginalREF: KDT 6th edition page 522, 536, Katzung 12th edition page 205CLASSIFICATION OF ANTIANGINAL DRUGSNitrates:Short acting: Glyceryl trinitrate (GTN, Nitroglycerine)Long acting: Isosorbide dinitrate (short acting by sublingual route), Isosorbide mononitrate, Erythrityl tetranitrate, Pentaerythrito... | 8,883 | medmcqa_train |
Which of the following hypothesis was initially given for etiology of schizophrenia? | Ans. B. Dopamine hypothesisThe dopamine hypothesis of schizophrenia or the dopamine hypothesis of psychosis is a model attributing symptoms of schizophrenia (like psychoses) to a disturbed and hyperactive dopaminergic signal transduction. The model draws evidence from the observation that a large number of antipsychoti... | 8,884 | medmcqa_train |
Following a motor vehicle accident, a truck driver complains of severe abdominal pain. Serum amylase level is markedly increased to 800 U. Grey Turner's sign is seen in the flanks. Pancreatic trauma is suspected. Which statement is true of pancreatic trauma? | Because of its protected retroperitoneal location, pancreatic injury occurs with deep penetrating wounds or with significant blunt trauma to upper abdomen. Blunt trauma accounts for less than 20-30% of all pancreatic injuries. The most common site of injury is at the neck of the pancreas where the pancreatic tissue is ... | 8,885 | medmcqa_train |
Incisura is absent in ? | The occurrence and magnitude of the incisura of the central aoic pressure were shown in 66 patients to depend on the functional state of the aoic valve. In normal subjects and children with congenital aoic stenosis (with thin flexible leaflets), the incisura ranged between 6 and 14 mm Hg. With aoic regurgitation, the i... | 8,886 | medmcqa_train |
Concerning the gastrointestinal (GI) tract during pregnancy, which of the following is true? | Heaburn (pyrosis) is the feeling of substernal burning, often radiating to the neck. It is caused by the reflux of acidic (or, rarely, alkaline) material into the esophagus, it is highly specific for gastroesophageal reflux disease. Epulis: A pyogenic granuloma is a common, benign proliferation of connective tissue in ... | 8,887 | medmcqa_train |
Which of the following is positive in Follicular lymphoma? | Follicular lymphoma likely arises from germinal center B cells and is strongly associated with chromosomal translocations involving BCL2. Its hallmark is a (14;18) translocation that juxtaposes the IGH locus on chromosome 14 and the BCL2 locus on chromosome 18. The t(14;18) is seen in up to 90% of follicular lymphomas,... | 8,888 | medmcqa_train |
Acute hemorrhagic conjunctivitis is seen with - | Hemorrhagic conjunctivitis is caused by picornaviruses (Enterovirus-70, coxsackievirus A24) and sometimes Adenovirus type11. Ref: Duker 2nd/e p.229 | 8,889 | medmcqa_train |
Risk of scar rupture in previous LSCS with lower segment scar is - | Ans. is 'a'i.e., 1% o The risk of lower segment scar - rupture is low (0[?]2-1[?]5%) and even if it does occur, maternal death is much less and the perinatal mortality is about 1 in 8.o Previous history of classical caesarean section or hysterotomy makes the woman vulnerable to unpredictable rupture of the uterus. This... | 8,890 | medmcqa_train |
A surgeon excises a portion of liver of the left of the attachment of the falciform ligament. The segments that have been resected are - | The portion of liver on the left side of falciform ligament is left (anatomical) lobe of liver. And in Couinaud's functional segmentation of liver, the segment number 2, 3, 4a and 4b form the left liver lobe. | 8,891 | medmcqa_train |
Urea is synthesized in all except | The ammonia from all over the body thus reaches liver.It is then detoxified to urea by liver cells, and then excreted thougth kidneys. Urea is the end product of protein metabolism. Since mammals including humanbeings excrete amino nitrogen mainly as urea , they are referred to as ureotolic.Although , ammonia is toxic ... | 8,892 | medmcqa_train |
Which of the following is not a parameter for the WHO classification of malnutrition: | Weight-for-age is not a parameter for the WHO classification of malnutrition. It has limited clinical significance as it does not differentiate between wasting and stunting. WHO Classification Parameter Moderate malnutrition Severe malnutrition Symmetrical edema no yes Weight/height (wasting) <-2SD to >-3SD (70 to 79% ... | 8,893 | medmcqa_train |
Popliteal aneurysm-All are true except- | • Occur in conjunction with aortic aneurysm in 40% cases
• Most isolated iliac aneurysm involve common iliac artery (70%) and internal iliac artery (20%)
• Multiple iliac aneurysms occur in most patients and are bilateral in 33% cases
Etiology
• Occur in association with atherosclerosis
• Can also occur in pregnancy in... | 8,894 | medmcqa_train |
Metabolic Syndrome has following features except | The metabolic syndrome (syndrome X, insulin resistance syndrome) consists of a constellation of metabolic abnormalities that confer increased risk of cardiovascular disease (CVD) and diabetes mellitusThe major features of the metabolic syndrome include central obesity, hyperiglyceridemia, low levels of high-density lip... | 8,895 | medmcqa_train |
Which of the following opioid analgesic acts primarily through K opioid receptors? | (Ref: KDT 6/e p464, 465) Pentazocine can cause dysphoric reactions (hallucinations) by stimulating the K receptors. | 8,896 | medmcqa_train |
Which of the following is not a component of Glasgow Coma Scale? | Ans. is 'c' i.e. pupil size | 8,897 | medmcqa_train |
Form the normal bacterial flora of the conjunctiva | Ans. Corynebacterium xerosis | 8,898 | medmcqa_train |
Hypoceruloplasminimia is associated with which abnormality? | (A) Menkes disease # Deficiency or Lower-than-normal ceruloplasmin levels may indicate the following:> Wilson disease copper storage disease)> Menkes disease (Menkes kinky hair syndrome) (rare - UK incidence 1/100,000)> Overdose of Vitamin C> Copper deficiency> Aceruloplasminemia> Excess or Greater-than-normal cerulopl... | 8,899 | medmcqa_train |
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