query stringlengths 1 1.57k | pos stringlengths 1 22.5k | idx int64 0 161k | task_name stringclasses 1
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The oxygen hemoglobin dissociation curve is sigmoid because: | A i.e. Binding of one oxygen molecule increases the affinity of binding other 0, molecule | 11,600 | medmcqa_train |
Expansile lytic osseous metastases are characteristics of primary malignancy of - | Renal (kidney) carcinoma → Osteolytic bone metastasis.
Breast and lung (bronchus) → Mixed osteolytic - Osteoblastic
Prostate carcinoma → Osteoblastic metastasis | 11,601 | medmcqa_train |
Hydrocoisone acts as an anti-inflammatory agent because of induction of the synthesis of which of the following protein? | (Ref: KDT 6/e p279) Coicosteroids induce the synthesis of lipocoins that inhibit the enzyme phospholipase A2. | 11,602 | medmcqa_train |
A 16-year-old boy was found to have a grade 2 ejection systolic murmur along the left sternal border, which decreased with squatting and increased with sudden standing. An ECG shows left ventricular hyperophy . His cousin brother died at the age of 20 years while playing hockey due to some hea disease. What is the reco... | This examination findings, ECG findings and family history are consistent with hyperophic cardiomyopathy. Diagnosis is typically done by echocardiogram. For people with HCM who don't have symptoms, Lifestyle changes and medications for conditions that may contribute to cardiovascular disease are recommended. Current re... | 11,603 | medmcqa_train |
A three years old boy presents with the poor urinary stream. Most likely cause is | Poor urinary stream in 3 years old boy suggests urinary tract obstruction (usually intravesical) and the most common cause of obstructive uropathy in a male child is posterior urethral valve. Posterior urethral valve These are symmetrical folds of urothelium extending distally from prostatic urethra to external urinary... | 11,604 | medmcqa_train |
Parkland formula is: (Repeat) | Ans: A (% of burn area* body wt*4) Ref: Nelson's Textbook of Pediatrics. 19th EditionExplanation:Parkland's FormulaTotal percentage body surface area x weight (kg) x 4 = volume (ml)Half this volume is given in the first 8 hours, and the second half is given in the next 16 hours | 11,605 | medmcqa_train |
Immunization is - | Ans. is 'a' i.e., Primary prevention Immunization is a specific protection type of primary prevention | 11,606 | medmcqa_train |
Yoyo reflux - | Ans. is 'a' i.e., Duplication of ureter * Reflux of the urine from one limb of the collecting system to the other limb, rather than down towards the bladder is called yo-yo reflux (saddle reflux)* Cause: Duplication of ureters, partial duplication of ureters, duplicate renal pelvis* Another explanation of yo-yo reflux ... | 11,607 | medmcqa_train |
In a study in UK, an association was found between sale of antiarrythmic drug and an increase in deaths due to asthma. This is an example of | Ecological study [Ref: Park, 21/e p59 (19/e, p58) www.ucel.ac.uk.rlos/specs/rlo_observational_study.doc; Repeat Nov 10 & Nov 06 This is an example of ecological study. An ecological study is a type of Observational study where information is collected on a group (or population) rather than on individual members and the... | 11,608 | medmcqa_train |
Which of the following is not a non-sedating antiallergic drug? | Ans. is 'd' i.e., Triprolidine o Second generation antihistaminics have no CNS depressant action (sedation, diminished aleness) o Cetrizine, astemizole and terfenadine are second generation antihistaminics. o Triprolidine is first generation antihistaminic with mild sedative propey. | 11,609 | medmcqa_train |
A young patient presents to the emergency depament with fever and right upper quadrant pain Clinical examination reveals obvious hepatomegaly but there is no jaundice. Ultrasound reveals a solitary, homogeneous, hypoechoic lesion in the right lobe measuring 5 cm 5 cm 4 cm. Test for hydatid disease were negative. Which ... | Amoebic liver abscess The abscess is usually found in the right hepatic lobe. There may not be associated diarrhoea. Early symptoms may be only local discomfo and malaise; later, a swinging temperature and sweating may develop, usually without marked systemic symptoms or signs. An enlarged, tender liver, cough and pain... | 11,610 | medmcqa_train |
Normal curve - | Ans. is 'a' i.e., Distribution of data is symmetrical Standard normal curveo It is also known as bell curve or Gaussian distribution.o The shape of the curve is like a bell - bell shaped curve.o The data are distributed symmetrically on either side of a central value.o Normal distribution curve looks symmetrical in the... | 11,611 | medmcqa_train |
Natural habitat of Schistosoma (blood flukes) - | The adult worm of S.haematobium live primarily in the vesical and pelvic venous plexuses where as S.japonicum and S.mansoni inhabit superior mesentric vein and inferior mesentric vein respectively (refer pgno:119 baveja 3 rd edition) | 11,612 | medmcqa_train |
Biochemical oxygen demand is determined by | Ans. is 'a' . Organic matter & Bacteria. "The strength of sewage is expressed in terms ofBiochemical oxygen demandChemical oxygen demandsSuspended solids demand""Biochemical Oxygen demand -It is the most important test done on sewage. It is defined as the amount of oxygen absorbed by a sample of sewage during a specifi... | 11,613 | medmcqa_train |
A 70-year-old woman with a history of ovarian cancer presents with diarrhea. She completed radiation therapy for her cancer 3 months ago. Physical examination shows cachexia, hyperactive bowel sounds, and generalized pallor. The stools are found to contain blood. A CBC shows decreased hemoglobin (7.8 g/dL) and decrease... | Radiation therapy for malignant disease of the pelvis or abdomen may be complicated by injury to the small intestine and colon. Clinically significant radiation enterocolitis is most common in the rectum. The lesions produced by radiation therapy range from a reversible injury of the intestinal mucosa to chronic inflam... | 11,614 | medmcqa_train |
True about this condition is | This is Giant congenital pigmented naevus (GCPN) or giant hairy naevusIt is a hamaoma of naevo-melanocytes that has a tendency to dermatomal distribution. It has a similar histology to compound naevi, but the naevus cells are distributed variably from the epidermis throughout all layers and into the subdermal fat and m... | 11,615 | medmcqa_train |
Putrefaction is facilitated by following except: | A i.e. Very high temperature - In females ovaries & non gravid uterusQ; and in males prostate & testisQ putrify very late only preceeded by skin, muscle, tendon & bone which are last organ to putrify. (in the same order) - Due to involution of gases, the liver becomes spongy in W. putrefaction and it is k/a Foamy or Sw... | 11,616 | medmcqa_train |
Chief Judicial Magistrate can sentence a guilty for imprisonment upto: DNB 09 | Ans. 7 years | 11,617 | medmcqa_train |
Most common orbital tumor in children- | Malignant tumor arise from pleuripotent mesenchymal cells , seen in childrens below 15yrs of age and common in adults Ref : ak khurana 6th edition | 11,618 | medmcqa_train |
The greater omentum is derived from which of the following embryonic structures? | Both the omental bursa and the greater omentum are derived from the dorsal mesogastrium, which is the mesentery of the stomach region.Must know:The dorsal mesoduodenum is the mesentery of the developing duodenum, which later disappears so that the duodenum and pancreas come to lie retroperitoneally.The pericardioperito... | 11,619 | medmcqa_train |
SA node is the pacemaker, under normal conditions, due to which of the following:- | SA node acts as pacemaker because of slow & spontaneous depolarization (due to slow influx of Na (If) causing || in prepotential). Repolarisation is rapid - due to RAPID EFFLUX OF K+ Automaticity is also provided by AV node but recovery after every impulse is fastest in SA node. Every pa of the hea has its own rhythmic... | 11,620 | medmcqa_train |
% of HbF in a 6 month old infant is – | By 6-12 months, only a trace is present.
Amongs the given options, 10% is the minimum and therefore the best answer. | 11,621 | medmcqa_train |
The genes involved in CA stomach are all except | Ans. is B C-kit mutationRisk factors for gastric carcinomaA) Environmental factors : H. Pylori infection, dietary factors (nitrites/nitrate, smoked and salted foods, lack of fresh fruits/vegetables, deficiency of vitamin C & E), cigarette smoking, and low socioeconomic status.B) Host factors : Chronic gastritis (causin... | 11,622 | medmcqa_train |
An elderly man presents with h/o abdomianl pain. He is found to have a fusiform dilatation of the descending aoa. Likely cause is: | The is a case, of a symptomatic aneurysm suggested by pain as well as a fusiform dilatation of the aoa. 95% of the abdominal aneurysms are due to atherosclerosis. Ref: Bailey and Love's Sho Practice of Surgery, 25th Edition, Page 918 and 23rd Edition, Page 727. | 11,623 | medmcqa_train |
Nucleus pulposis is derived from: | The nucleus pulposus is the sole remnant of the embryonic notochord, the initial longitudinal skeletal axis of the body. The developing bodies and interveebral discs of the veebral column replace the notochord. NOTOCHORD: The notochordal plate becomes the centrally placed notochord, which acts as a foundation around wh... | 11,624 | medmcqa_train |
Which of the following antibodies correlates with disease activity for S.L.E - | Ans. is 'b' i.e., Anti-ds DNA antibody Autoantibodies in Systemic Lupus Erythematosus (SLE)AntibodyPrevalence%Antigen RecognizedClinical Utilityo Antinuclear antibodies98Multiple nuclearBest screening test; repeated negative tests make SLE unlikelyo Anti-dsDNA70DNA (double-stranded)High titers are SLE-specific and in s... | 11,625 | medmcqa_train |
Vitamin B12 is given in severe anemia via which route: | Ans. (a) I/MRef. KDT 6th ed. / 588B VITAMIN B12* Present in two forms: cyanocobalamin and hydroxocobalamin.* Dietary sources: liver, kidney, sea fish, egg yolk, meat and cheese.* Only vegetable source: Legumes (pulses)* Daily requirement: 1-2 mg/day. In cases of pregnancy and lactation: 3-5 mg/day.Manifestation of Defi... | 11,626 | medmcqa_train |
Dose of local anesthesia for spinal is/are? | Ans. is 'c' i.e., Lignocaine - 5%oDose of lignocaine for spinal anesthesia is 5% solution diluted in 7.5% dextroseoBupivacaine dose for spinal anesthesia is 0.75% solution diluted in 8.25% dextroseLocal Anesthetic Dosing for Spinal Anesthesia Suggested Dose (mg)Duration of Effect (Minutes)AnesthaticUsual ConcentrationL... | 11,627 | medmcqa_train |
A 55 year old man who has been on bed rest for the past 10 days, complains of breathlessness and chest pain. The chest X-ray is normal. The next investigation should be: | Answer is A (Lung perfusion -- ventilation scan): The clinical picture depicted in the question is suggestive of a case of pulmonary thromboembolism. As the patient has a high clinical likelihood, the first investigation should be a non invasive imaging modality in accordance with the diagnostic strategy for PTE outlin... | 11,628 | medmcqa_train |
Electron beam therapy is used for which tumor ? | Ans. is'b'i.e., Kaposi sarcomaElectron-beam radiation therapy is the most common modality employed for the treatment of localized KS. | 11,629 | medmcqa_train |
The probable source of relaxin is : | Relaxin is a peptide hormone. deg It is produced by the ovarydeg to be specific by the corpus luteum of pregnancydeg If corpus luteum is in options, it should be the answer of choice. It has also been identified in : - placentadeg - deciduadeg - choriondeg It is not detected i 11-11 -Os lel s -es, t women.deg Levels of... | 11,630 | medmcqa_train |
Post operative abscess treatment of choice | Localised infection An abscess may present with persistent abdominal pain, focal tenderness and a spiking fever. The patient may have a prolonged ileus. If the abscess is deep-seated these symptoms may be absent. The patient will have a neutrophilic leucocytosis and may have positive blood cultures. An ultrasound or CT... | 11,631 | medmcqa_train |
Positive nitrogen balance is seen in ? | Ans. is 'c' i.e., Pregnancy The normal healthy adult is in "nitrogen balance or equilibrium". That is the amount of nitrogen ingested in the diet over a given period of time is equals that excreted in the urine and feces as excretory products.Positive nitrogen balance means amount of nitrogen taken in and retained exce... | 11,632 | medmcqa_train |
Which of the measurement correlates with the sub occipitofrontal diameter of fetal skull? | Sub Occipitofrontal diameter is measured from below the occipital protuberance to the centre of the sinciput. It measures 10cm. It is the diameter which distends the vulva in a normal veex presentation. Diameters of fetal skull: Occipitofrontal: It follows a line extending from a point just above the root of the nose t... | 11,633 | medmcqa_train |
Kartagener's syndrome is characterized by all EXCEPT | (Bronchitis) (11, 18-LT) (409-Maqbool 1lth)Kartagener's syndrome (immobile cilia). These patients have a constantly runny nose, secretory otitis media, chronic sinusitis, bronchiectasis and often sinus inversus (Dextrocardia) Cystic fibrosis of pancreas. | 11,634 | medmcqa_train |
Which ones are used for long term alcohol withdrawl | A i.e. Acamprostate; B i.e. Disulfiram; C i.e. Naltraxone | 11,635 | medmcqa_train |
45-year-old male complained of dysphagia. On investigation, he was HIV positive. He underwent endoscopy and biopsy. Endoscopy findings and histological findings are suggestive of? | Ans. (b) CMV esophagitisEndoscopy showed shallow ulcera at lower end of esophagusHistopathology shows large eosinophilic intranuclear inclusion and multiple small cytoplasmic inclusions | 11,636 | medmcqa_train |
Which of the following is a Rho kinase inhibitor? | Ans. a. Fasudil | 11,637 | medmcqa_train |
What is seen in luteal phase - | Ans. is 'a' i.e., Increased progesterone levels "Corpus luteum secretes progesterone, the level of which starts rising" | 11,638 | medmcqa_train |
A postmenopausal diabetic woman presents with bleeding per vaginum. The most likely diagnosis is : | Carcinoma endometrium | 11,639 | medmcqa_train |
Tumor marker most helpful in follow up of a case of Epithelial carcinoma of ovary is : | CA - 125 | 11,640 | medmcqa_train |
The following are contraindications to beta-blockers except ( REPEAT) | Beta blockers are used In the treatment of tachycardia as they are sympatholytics. | 11,641 | medmcqa_train |
Rotator cuff is/are formed by all except: (PGI May 2010) | Ans: D (Teres major) Fig. :The musculotendinous cuff of the shoulderMusculotendinous Cuff (Rotator Cuff) of the Shoulder BDC 4th /Vol I 78-79It is a fibrous sheath formed by the flattened tendons which blend with the capsule of the shoulder joint and strengthen itThe muscles which form the cuff arise from the scapula a... | 11,642 | medmcqa_train |
Nitrates in excess of ----mg/L may cause infantile methaemoglobinemia | Nitrates level >50 increases the risk of infantile methaemoglobinaemia. Ref: Park's textbook of PSM 25th edition, pg 783 | 11,643 | medmcqa_train |
The presence of Negri inclusion bodies in host cells is characteristic of? | The definitive diagnosis of rabies in humans is based on the finding of Negri bodies, which are cytoplasmic inclusions in the nerve cells of the spinal cord and brain, especially in the hippocampus. Negri bodies are eosinophilic and generally spherical in shape; several may appear in a given cell. Negri bodies, althoug... | 11,644 | medmcqa_train |
A healthy 3-year-old girl presents with acute onset of petechiae, purpura, and epistaxis. Her Hb 12 g/dl, WBC 5550/mm3, platelet count 2000/mm3. The most likely diagnosis is: | Ans. A. Idiopathic thrombocytopenic purpura (ITP)ITP is most commonly seen in previously healthy children, who may have encountered a recent viral infection. Because the pathogenesis involves peripheral destruction of platelets, the BM appears normal and other hemic lineages are not affected (unlike the case for acute ... | 11,645 | medmcqa_train |
'Post-moem staining' is distinguished from bruise by all EXCEPT: | Differences between Hypostasis & Bruise Trait Hypostasis Bruise Cause Distension of capillaries & veins Rupture of blood vessels Site Over most dependent pas of body Occur at site of injury, anywhere on body Appearance No elevation of involved area Swollen, due to collected blood & oedema Epidermis Not abraded May be a... | 11,646 | medmcqa_train |
HDL was called good cholesterol because: | HDL Good and Bad cholesterol terminology was used earlier. Now these terms 'good' & 'bad' cholesterol are discarded. HDL was called good cholesterol because of reverse cholesterol transpo i.e. it takes cholesterol from peripheral tissue to liver. HDL conves this cholesterol into cholesterol ester with the help of enzym... | 11,647 | medmcqa_train |
Small pox vaccine was invented by? | ANSWER: (B) Edward JennerREF: Jawetz's 24th ed chapter 34Edward Jenner introduced vaccination for small pox with live cowpox virus in 1798. | 11,648 | medmcqa_train |
ENaC mutation is associated with | ENac (Epithelial sodium channel)*ENac is a sodium transpo channel that is produced in the apical surface of all exocrine epithelial cells (All tracts and ducts)*The channel absorbs sodium from the luminal secretions and sent it back to the circulation thus maintaining the sodium level in blood and hence normal blood pr... | 11,649 | medmcqa_train |
A patient with a nodular thyroid swelling is suspected to have hypehyroidism. On examination there was absence of wrinkling on forehead when looking upwards with face inclined downwards. Which term denote this sign? | Von Graefe's sign - upper eye lid lags behind the eyeball when the patient looks down. Stellwag's sign - Staring look with infrequent blinking of eyes and widening of palpebral fissure. Moebius sign - Inability to converge eyeball Joffroy's sign - Absence of wrinkling of forehead when the patient looks upwards with fac... | 11,650 | medmcqa_train |
Most dependent Bronchopulmonary segment in supine position is | Most dependent Bronchopulmonary segment in supine position is Right Superior segment. | 11,651 | medmcqa_train |
Dowry deaths under IPC act - | According to Sec. 304- B IPC, where the death of a woman is caused by burns or bodily injury or occurs under abnormal circumstances within seven years of her marriage and it is shown that soon before her death she was subjected to cruelty or harassment by her husband or any relative of her husband for or in connection ... | 11,652 | medmcqa_train |
Gastric lavage is contraindicated in poisoning with: | B i.e. Kerosene | 11,653 | medmcqa_train |
Glucogenic aminoacids give rise to all of the following intermediates of citric acid cycle except- | Ans. is 'a' i.e., IsocitrateGlucogenic amino acids Component of TCA cycle producedHistidine, proline, glutamine, arginineGlutamatea-ketogiutarateIsoleucine, methioniney valine Succinyl CoATyrosine, phenylalanine FumarateTryptophanAlaninePyruvateHydroxyproline, serine, cysteine, threonine, glycine Pyruvate | 11,654 | medmcqa_train |
A newborn male child presents with respiratory distress in the neonatal unit. His X-ray shows left hemithorax with multiple air-filled structures and mediastinal shift to the right. Which of the following represents the most likely diagnosis? | Diaphragmatic hernia in a neonate is evidenced by the presence of bowels in the thorax, characterised by multiple air-filled structures. The pleuro-peritoneal canal is a defect in the diaphragm which allows the contents of the abdomen to enter the thorax. The mediastinal structures are pushed to the opposite side leadi... | 11,655 | medmcqa_train |
Alveolar hemorrhage and hemosiderin laden macrophages - | Ans. is 'b' Goodpasture syndrome Goodpasture syndromeo Goodpasture syndrome is a rare condition characterized by rapid destruction of the kidney and diffuse pulmonary hemorrhage.o It is an autoimmune disease characterized by presence of circulating autoantibodies targeted against basement membrane oflung and kidney.o T... | 11,656 | medmcqa_train |
Maximal permissible hours of work per person per week (including the overtime) under the Factory Act 1976, should not exceed_______? | Ans. d (60 hrs ) (Ref. Park Textbook of PSM 22nd/pg. 759) Answer is d). because the question includes overtime, so 60 hours/week. If including overtime was not mentioned then it should be 48 hours/week. With 9 hours/day with rest for at least Vz hour after continuous 5 hours. "......But the option in exam was 60 yrs...... | 11,657 | medmcqa_train |
Gene therapy is used for | 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... | 11,658 | medmcqa_train |
Hypocretin system plays a critical role in which of the following disorders? | Ans. D. NarcolepsyIt has become apparent that the hypo cretin system plays a critical role in narcolepsy. Narcolepsy is the prototypical example of sleepiness produced by a basic central nervous system dysfunction of sleep mechanisms. The etiology stems from a genetically triggered hypo cretin dysfunction and deficit. ... | 11,659 | medmcqa_train |
Which of the following drug is aipha-glucosidase inhibitor? | Acarbose , voglibose, miglitilol are alpha glucosidase inhibitors nateglinide- glinides, pioglitazone- thiazolidinediones (REF.Essential of medical pharmacology K D TRIPATHI 6 Edition, Page No - 270) | 11,660 | medmcqa_train |
Which of the following is the radiological finding of a benign gastric ulcer? | The radiographic features that suggest a benign gastric ulcer include, Projection from the lumen of the stomach Smooth lucent line (Hampton line) or collar at the neck of the ulcer Normal rugal folds that radiate to the edge of the ulcer collection Complete and permanent healing of the ulcer on repeat radiographic or e... | 11,661 | medmcqa_train |
Which of the following is the most probable diagnosis of the patient with the following x-ray? | Ans. is 'b' i.e., Pott's spine * Characteristic radiological feature of pott's spine is obliteration of disc space with destruction (wedge compression) of one or two adjacent vertebrae.* This feature differentiates Koch's spine from other diseases causing vertebral destruction (like metastasis, multiple myeloma), in wh... | 11,662 | medmcqa_train |
The metabolic derrangement in congenital pyloric stenosis is - | Ans. is 'a' i.e., Hypochloremic alkalosisClinical manifestations of congenital hyperophic pyloric stenosis Pyloric stenosis is usually not present at bih.o Nonbillous vomiting is the initial symptoms of pyloric stenosis.The vomiting usually stas after 3 weeks of age, but symptoms may develop as early as the 1st week of... | 11,663 | medmcqa_train |
Which of the following is a chemoreceptor? | Ans. is'a'i.e. OsmoreceptorsChemoreceptors are:-Taste buds (gustatory receptors) - OsmoreceptorsOlfactory receptors - Glucoreceptors | 11,664 | medmcqa_train |
A 4 year old African child develops an infection with Chlamydia trachomatis. How does infection with this organism cause blindness? | Chlamydia trachomatis (serotypes A, B, and C) causes a conjunctival and corneal infection that is spread in developing countries by eye-seeking flies. The lesions begin with formation of lymphoid follicles in the conjunctiva. With disease progression, there is tissue necrosis, granulation tissue deposition, and scar fo... | 11,665 | medmcqa_train |
Which of the following is not used as vector in genetics ? | The traditional viral vectors are adenoviral vectors followed by papilloma viruses and retroviruses. Retroviruses are the main and most commonly used viral vectors.Other cloning vectors for gene delivery are :-PlasmidBacteriophageCosmidBAC (Bacterial aificial chromosome)YAC (Yeast aificial chromosome).Liposomes or lipo... | 11,666 | medmcqa_train |
Suckling mice is used for isolation of ? | Ans. is 'a' i.e., Coxsackie virus It is necessary to employ suckling mice for the isolation of coxsackie viruses. Inoculation is usually made by intracerebral, subcutaneous and intraperitoneal route. Adult mice are not susceptible. | 11,667 | medmcqa_train |
A patient of rheumatic hea disease with mitral stenosis and atrial fibrillation is on oral warfarin. On one OPD visit, his INR is found to be 6. What is the action to be taken? | People living with RHD need to be on medication to reduce the risk of blood clots which can cause stroke. Medication may be needed if you have a hea valve replacement operation or an abnormal hea rhythm (atrial fibrillation). The most common anticoagulation medicine is called warfarin An INR range of 2.0 to 3.0 is gene... | 11,668 | medmcqa_train |
What is the COMMONEST complication of CSOM? | Mastoiditis is the most common complication of CSOM. Acute mastoiditis usually accompanies or follows acute suppurative otitis media. Complications of otitis media are classified into two main groups: A.Intratemporal: Mastoiditis Petrositis Facial paralysis Labyrinthitis B.Intracranial: Extradural abscess Subdural absc... | 11,669 | medmcqa_train |
Brown-sequardsyndrome | Sites of damage in Brown-Sequard Syndrome:Ascending sensory pathway: Dorsal-column pathway, Ventrolateral spinothalamic tract.Descending motor pathways: Coicospinal tract.Effects:Ipsilateral loss of discriminative touch, vibration, and proprioception below the level of lesion - (due to lesion of fasciculus cuneatus and... | 11,670 | medmcqa_train |
Judet view of X-ray is used for viewing injury of what ? | *Judet view of X- ray is for acetabular (pelvis) fracture. Ref : Maheshwari J Essential Ohopaedics 9th/e p.38 & 5th/e p.38,369 | 11,671 | medmcqa_train |
Sellick's maneuver is used for | Ans. (b) To prevent gastric aspirationRef : Miller's Anaesthesia 7th ed. 12430* Sellick s manuever is a method of preventing regurgitation of an anesthesized patient during endotracheal intubation by applying pressure to the cricoid cartilage.* Or in other words, Sellicks maneuver is application of backward pressure on... | 11,672 | medmcqa_train |
Best diagnostic test for cholestasis of pregnancy: | Liver function tests, including serum bile acids are Evaluated. Bile acids are the specific measure of the diagnosis and monitoring. Liver USG is to be done to exclude cholelithiasis. Reference: Textbook of Duttas, 9th edition ,page 271 | 11,673 | medmcqa_train |
Which of the following stimulate adenylate cyclase with G-protein coupled action - | Ans. is 'b' i.e., Cholera toxin Cholera toxino V. cholerae produces cholera toxin, the model for enterotoxins, whose action on the mucosal epithelium is responsible for the characteristic diarrhoea of the cholera.o Cholera toxin is a protein complex made up of six subunits - a single copy of 'A' subunit (Port A) and fi... | 11,674 | medmcqa_train |
All of the following serve as intracellular second messengers in receptor-mediated signal transduction except | GPCR do not act as intracellular messengers thery are receptors present on the trans membranes of the cell and help in ligand binding and cell signalling different secondary messengers include cAMP, IP3/DAG,cGMP and some times calcium. Ref: KDT 6/e pg. 39 | 11,675 | medmcqa_train |
Conditions predisposing to leukemia include all except- | Ans. is 'c' i.e., Inflections mononucleosis Conditions predisposing to acute leukemias o Myelodysplastic syndrome o Ataxia telangiectasia o Chronic myeloproliferative disorders o Down syndrome o Iosnizing radiation and ceain toxic chemicals. o Klinefelter's syndrome o Bloom syndrome o Neurofibromatosis o Fanconi anemia | 11,676 | medmcqa_train |
Significant bacteriuria is defined as presence of_____ bacteria per ml of urine. | Ans. d (> 1,00,000) (Ref. H-18th, Chapter 288; Ananthanarayan Microbiology 7th/pg. 276)Hass and other investigators have established that in the presence of active infection in the urinary tract the urine will contain 1,00,000 or more/mL. The level is, therefore, considered to represent significant bacteriuria.SIGNIFIC... | 11,677 | medmcqa_train |
All are pa of management of acute variceal haemorrhage except | The medical management of acute variceal haemorrhage includes the use of vasoconstricting agents, usually somatostatin or octreotideBalloon tamponade (Sengstaken-Blakemore tube or Minnesota tube) can be used in patients who cannot get endoscopic therapy immediately or who need stabilization prior to endoscopic therapy.... | 11,678 | medmcqa_train |
Occulo-cutaneous albinism is associated with? | Ans. is 'd' i.e., All of the above "Actinic skin damage, squamous cell carcinoma and basal cell carcinoma are well recognized complications of occulocutaneous albinism; malignant melanoma is much less common complication." - A practical guide human cancer genetics 4th/e; p 192"Increased skin cancer among albinos is mos... | 11,679 | medmcqa_train |
A 55yr old man with dementia was given a natural alkaloid. Which of the following could it be- | Ans. is 'c' i.e., Galantamine Galantamine: o It is a natural alkaloid which selectively inhibits cerebral acetylcholinesterase and has some direct agonistic action on nicotinic receptors as well. o It has produced cognitive and behavioral benefits in Alzheimer's disease | 11,680 | medmcqa_train |
RBC should be transfused with a needle having which of the following size? | Big sized needle is used to reduce the risk of hemolysis and speed up the blood flow rate. As per the norms, the needle to be used in the adults for blood transfusion is 18-20 guage. The transfusion has to be staed within 30 minutes and finish within 4hrs of issue from the blood bank. | 11,681 | medmcqa_train |
Least common ion in EOF is | Predominent ions in ECF are Na+ and Cl-predominent ions in ICF are K+ ,Mg+,phosphate Table1.3.3 of Textbook of physiology AK Jain 4th edition page no.27. | 11,682 | medmcqa_train |
Pancytopenia with hypercellular marrow may be seen due to all of the following except: | Answer is C (Dyskeratosis Congenita ) Dyskeratosis congenita (constitutional aplastic anemia) is associated with Pancytopenia and a Hypocellular bone marrow Myelodysplasia, PNH and Sarcoidosis may all be associated with Pancytopenia and a cellular bone marrow | 11,683 | medmcqa_train |
Scrub typhus is positive for | Scrub typhus aka chigger borne typhus is caused by orientia tsutsugamushi.In a heterephile agglutination test(weil Felix reaction), the sera of scrub typhus patients agglutinated only OX K strain of proteins mirabilis without getting agglutinated with OX 19 and OX 2 ...as some rickettsiae and ceain strains like OX K ,O... | 11,684 | medmcqa_train |
A patient is NOT able to look downward. Which muscle may be paralyzed? | MUSCLES helping in looking down - Inferior rectus - primary function supplied by 3rd cranial nerve Superior oblique - secondary function-suppliecd by 4th cranial nerve | 11,685 | medmcqa_train |
All of the following statements about hereditary hemochromatosis are true Except | Answer is C (Desferroxamine is the treatment of choice): The therapy of hematochromatosis involves removal of excess body iron Iron removal is best acieved by periodic phlebotomies which is the treatment of choice for Hematochromosis. Chelating agents like desferoxamine are less effective and indicated when anemia or h... | 11,686 | medmcqa_train |
Femto Laser assisted cataract removal done using laser of how much wavelength | Femtolaser (1053 nm) is the new paradigm in the Ophthalmology. Its uses are: *Laser assisted cataract surgery *Refractive surgery * Keratoplasty *Intracorneal ring segments for keratoconus Nd:YAG laser has a wavelength of 1064 nm, Frequency doubled Nd:YAG has wavelength of 532 Argon Fluoride laser has a wavelength of 1... | 11,687 | medmcqa_train |
Baby born to patient suspected of chlamydial infection sample to be taken for diagnosis? | The chlamydia trachomatis cause inclusion blenorrhea, a neonatal form of inclusion conjunctivitis. It develops when infant is infected in the bih canal. The specimen of choice in this case is conjunctival scrapings, where characteristic inclusion bodies can be demonstrated. Image : Follicles on the bulbar conjunctiva, ... | 11,688 | medmcqa_train |
Wooden chest rigidity is seen with | Fentanyl induced chest wall rigidity seen with high bolus dose of fentanyl. CWR related to opiate administration was first described by Hamilton and Cullen in 1953 . Following opiate administration, clinicians may observe significant difficulty with mask ventilation, respiratory arrest, and a rigid chest wall; this phe... | 11,689 | medmcqa_train |
Which of the following are risk factors for Angiosarcoma | Option A, B, C are all risk factors for Angiosarcoma. | 11,690 | medmcqa_train |
All are true statements about Hernias EXCEPT | (A) Abdominal hernia needs no repair # Hernia is the bulging of part of the contents of the abdominal cavity through a weakness in the abdominal wall.> Causes of hernia: Basic design weakness Weakness due to structures entering and leaving the abdomen Developmental failures Genetic weakness of collagen Sharp and blunt ... | 11,691 | medmcqa_train |
Dyskeratosis is characteristic feature of ? | Dyskeratosis - Premature or abnormal keratinization Seen in -1. Malignant condition : Squamous cell carcinoma2. Premalignant : Bowen's disease3. Benign conditions :a. Darier's diseaseb. Hailey-hailey disease | 11,692 | medmcqa_train |
All of the following anibiotics act by interfering with cell was formation EXCEPT: | (Ref: KDT 6/e p668) Clindamycin acts by inhibiting the protein synthesis | 11,693 | medmcqa_train |
Arrange the following causes of NCD deaths as per decreasing order of frequency? A. Cancers B. Cardiovascular diseases C. Diabetes D. Respiratory diseases | The four main NCDs are cardiovascular diseases, cancers, diabetes and chronic lung diseases. The leading causes of NCD deaths in 2016 were Cardiovascular diseases ( 44% of all NCD deaths) Cancers (22% of all NCD deaths) Respiratory diseases, including asthma and chronic obstructive pulmonary disease (9% of all NCD deat... | 11,694 | medmcqa_train |
Which of the following arteries supplying uterus is insensitive to hormonal changes | Basal arteries are relatively insensitive to hormonal changes. | 11,695 | medmcqa_train |
Keroin is caused by - | Ans. is 'c' i.e., Dermatophytes Kerion is a hypersensitivity and inflammation reaction in tinea capitis caused by zoophilic species of dermatophytes (T. verruca and T. mentagrophytes). | 11,696 | medmcqa_train |
Niacin deficiency cause | Niacin
This vitamin differs from the other vitamins of the B-complex group in that an essential amino acids tryptophan serves as its precursor.
Another characterstic of niacin is that it is not excreted in urine as such, but is metabolised to two major methylated derivatives.
N-methyl-nicotinamide
N-methyl pyridone... | 11,697 | medmcqa_train |
A neonate develops signs of meningitis at seven days of birth. The presence of which of the following infectious agent in the maternal genital tract can be the causative agent of this disease? | (C) Streptococcus agalactiae | 11,698 | medmcqa_train |
Paterson Brown Kelly syndrome is characterized by all except | Upper esophageal/ Post cricoid webs are seen . ref - Harrisons internal medicine 20e pg 566 , davidson medicine 23e pg796 | 11,699 | medmcqa_train |
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