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The best investigation for cardiac tamponade is: | Ans. 2-D echocardiography | 17,700 | medmcqa_train |
Alpha fetoprotein is a marker of | Ref Robbins 8/e p 327; 7/e P339,9/e p869_870 AFP is Glycoprotein synthesized in fetal life by yolk sac,fetal liver,fetal GIT.It is a marker of hepatocellular carcinoma,non seminomatous germ cell tumor Of testis Elevated level of AFP Is found less regularly in carcinoma of lung,colon, pancreas IImpoant points about hepa... | 17,701 | medmcqa_train |
DNA dependent RNA synthesis is inhibited by which of the following drug? | Rifampicin is an antimycobacterial drug which exes both intracellular and extracellular bactericidal activity by binding to and inhibiting mycobacterial DNA-dependent RNA polymerase blocking RNA synthesis. Ethambutol is a bacteriostatic against M tuberculosis. It acts by inhibiting arabinosyl transferases involved in c... | 17,702 | medmcqa_train |
In which of the following conditions, the root can be left in the alveolar process? | Conditions for a root to be left in the alveolar process:
The root fragment must be small, usually no more than 4 to 5mm in length.
The root must be deeply embedded in bone.
The tooth involved must not be infected, and there must be no radiolucency around the apex.
When the risk is too great, if removal of the root wi... | 17,703 | medmcqa_train |
Using a new technique, Hb was estimated in a blood sample. The test was repeated for 10 times. The repos were : 9.5, 9.2, 9.4, 9.6, 9.7, 9.9, 10.2, 10.3, 10.5, 12.1. Accurate value of Hb was estimated by standard tests to be 10.2. The new technique has ? | Ans. is 'b' i.e. low validity and low reliability Validity (Accuracy) o The validity of a test is the extent to which it accurately measures which it purpos to measure. In other words its the ability to show which individuals have the disease in question and which do not. o Validity has two components - sensitivity & s... | 17,704 | medmcqa_train |
Acetyl CoA is generated primarily in mitochondria. However, fatty acid synthesis from acetyl CoA occurs extramitochondrial (in the cytosol). By which one of the following mechanisms does acetyl CoA leave the mitochondrion and enter the cytosol? | Carnitine transfers fatty acids from cytosolic fatty acyl CoA to form mitochondrial fatty acyl CoA. The conversion of acetyl CoA to malonyl CoA occurs in the cytosol. Coenzyme A cannot pass through the inner mitochondrial membrane. Acetoacetyl CoA has to be conveed to HMG CoA before it is conveed to acetoacetate. Ref: ... | 17,705 | medmcqa_train |
Features of Barrett's esophagus are all Except | Barrett's esophagus is specialized columnar metaplasia that replaces the normal squamous mucosa of the distal esophagus in some persons with GERD. Barrett's epithelium is a major risk factor for adenocarcinoma of the esophagus and is readily detected endoscopically, due to proximal displacement of the squamocolumnar ju... | 17,706 | medmcqa_train |
Peripheral neuritis induced by isoniazid is prevented by giving which vitamin along with it? | Ans. is 'b' i.e., Vitamin B6 Isoniazid induced peripheral neuritis/ neuropathy* Peripheral neuritis is a well documented adverse effect of INH, which is also the most important dose dependant toxic effect.* Peripheral neuropathy is observed in 10 to 20% of patients given dosages greater than 5 mg/kg/d, but it is infreq... | 17,707 | medmcqa_train |
Most common position of appendix is | The tip of the appendix can have a variable position within the abdominal cavity : retro-caecal (65-70%) pelvic (25-30%) pre- or post-ileal (5%) Ref - BDC 6e vol2 pg269 | 17,708 | medmcqa_train |
The capsule of the crystalline lens is thinnest at - | The lens capsule is thickest at pre-equator regions (14u) and thinnest at the posterior pole (3u). | 17,709 | medmcqa_train |
An idiotype is characterized by | Idiotypes are antigenic determinants that appear only on the Fab fragments of antibodies and appear to be localized at the ligand-binding site; thus, anti-idiotype antisera may block reactions with the appropriate hapten. The carbohydrate side chains of immunoglobulins are relatively nonimmunogenic. New determinants ma... | 17,710 | medmcqa_train |
All are features of Peussis except- | Ans. is 'b' i.e., Cerebellar ataxia Complications of Peussis o Respiratory - o Patchy Atelatasis Subcutaneous emphysema o Neurological Persistent seizures Paraplegia Ataxia o Gasro Intestinal manifestation --> Hernia & Rectal Prolapse o Hemorrhagic --> Subconjuctival hemorrhage, Intracranial hemorrhage o Severe malnutr... | 17,711 | medmcqa_train |
Pauci immune glomerulonephritis is seen in- | Pauci-immune type crescentic GN is defined by the lack of anti-GBM antibodies or significant immune complex deposition. Anti-neutrophil cytoplasmic antibodies (ANCA) typically are found in the serum, which, have a pathogenic role in some vasculitides. In some instances, therefore, crescentic GN is a component of system... | 17,712 | medmcqa_train |
Which of the following is not stored at cold temperature? | Ans. is 'd' i.e., Platelet concentrateoWhole blood contains 350 ml of donor blood plus anticoagulants. Once blood is removed from the donor, it starts a sequences of in vitro changes that change its physiological properties. Ensuring the blood and its products transfusion safe, their storage is a must. The main aim is ... | 17,713 | medmcqa_train |
Marble bone disease is an inherited disease of the skeleton which is accompanied by an increase in calcified bone tissue. It is also known as: | Osteopetrosis or Albers-Schonberg Disease or Marble Bone Disease is an inherited disease of the skeleton which is accompanied by an increase in calcified bone tissue - namely osteosclerosis. The bone marrow cavity is almost completely filled with compact bone tissue and coex is thickened by periosteal bone deposition. ... | 17,714 | medmcqa_train |
Antrochoanal polyp opens In which meant | ANTROCHOANAL POLYP most commonly seen in children.
They are unilateral, usually arises from the mucosa of maxillary antrum near its accessory ostium comes out of it & grows in the channel & nasal cavity.
Maxillary sinus opens into the middle meatus. | 17,715 | medmcqa_train |
A 42-year-old woman complains of pain and stiffness in her neck. She was injured sliding into second base headfirst during her company softball game. Radiographs reveal no fractures of her spine. However, upon physical examination her right shoulder is drooping and she has difficulty in elevating that shoulder. If you ... | The thoracodorsal nerve innervates the latissimus dorsi, which has no action on the shoulder girdle. The spinal accessory nerve is the eleventh cranial nerve (CNXI) and innervates both the trapezius and sternocleidomastoid muscles. The loss of CNXI results in drooping of the shoulder due to paralysis of the trapezius. ... | 17,716 | medmcqa_train |
Which one of the following agents has been associated with hemorrhagic stroke - | Ans. is 'a' i.e., Phenylpropanolamine o Many repos associating phenylpropanolamine use for weight loss with haemorrhagic stroke among women, appeared in U.S.A. | 17,717 | medmcqa_train |
Vitamin K is required for: | Vit k Act as coenzyme in Carboxylation of clotting factor 2,7,9,10 Only fat-soluble vitamin with coenzyme function. 3 forms k1-phyloquinone k2-menaquinone k3-manadione (water soluble)-synthetic form Deficiency lead to hemorrhagic disease of new born Prophylactic administration of Vit k for all new born advised | 17,718 | medmcqa_train |
The most liberal rule regarding criminal responsibility of an insane person is ______ | Durhams rule or product rule was too broad that it was repealed later | 17,719 | medmcqa_train |
Proved association of celiac sprue is with: | Answer is A (Dermatitis Herpetiformis) Celiac disease is associated with Dermatitis Herpetiformis Dermatitis Herpetiformis is regarded as cutaneous variant of celiac disease. Almost all patients with dermatitis N as Herpetiformis have evidence of celiac disease on intestinal biopsy' - CMD Associations of Celiac Disease... | 17,720 | medmcqa_train |
Mesangial deposits of monoclonal kappa/Lambda light chains in indicative of: | Mesangial deposits of monoclonal kappa/lambda light chains suggest the diagnosis of Amyloidosis. Renal amyloidosis is the most common cause of death due to amyloidosis Amyloid deposition begins from mesangium and involves other pa later Clinical features - proteinuria , urinary cast present , kidney size increases. In ... | 17,721 | medmcqa_train |
Which of the following enzymes is known as 'suicide enzyme'? | Cyclooxygenase can switch off the synthesis of prostaglandins by undergoing self-catalysed destruction. That is why this enzyme is known as suicidal enzyme. (Do not confuse this with suicidal inhibition). Cyclooxygenase aka prostaglandin H synthase Bifunctional enzyme with two activities - cyclooxygenase and peroxidase... | 17,722 | medmcqa_train |
Treatment of middle ear papilloma is ? | Ans. is 'c' i.e., Tympanomastoidectomy Middle ear pappilomas The middle ear papillomas are rare presentations and medical literature is mainly limited to case repos or case series. These include aggressive pappilary tumors, schneiderian type of pappilomas and inveed pappilomas. They are associated with hearing difficul... | 17,723 | medmcqa_train |
Which of the following is an indication of complete veneer prosthesis as retainers for FPD? | Indications of complete veneer prosthesis as crown:
Presence of extensive caries.
Large defective restorations.
Endodontically treated teeth.
Fractured tooth.
Need to change contour for removable partial denture retention.
Indications of complete veneer prosthesis as retainer for FPD:
Short abutment.
Long-span fixed ... | 17,724 | medmcqa_train |
Transamination of pyruvate with glutamate leads to: | Transamination, a chemical reaction that transfers an amino group to a ketoacid to form new amino acids. This pathway is responsible for the deamination of most amino acids. | 17,725 | medmcqa_train |
Bacterial adherence to epithelium is mediated through | Explanation: Fimbriae Certain (Gram-negative bacilli carry very fine, hair-like surface appendages called fimbriae or pili.
They are shorter and thinner than flagella Fimbriae can be seen only under the electron microscope.
Fimbriae function as organs of adhesion, helping the cells to adhere firmly to particles of vari... | 17,726 | medmcqa_train |
Which of the following statements about changes in aicular cailage with aging is not TRUE? | In ageing there will be no increase in enzymatic degradation of proteoglycans. The enzymatic degradation is slow and constant throughout the life. Ref: Biology of Cailage Cells, Stockwell, R.A, 1976, 1st Edition, Page 245; Osteoahritis : A companion to Rheumatology, Elsevier, 1st Edition, 2007, Page 79. | 17,727 | medmcqa_train |
Anti cancer drug causing nephrotoxicity ? | Ans. is 'c' i.e., Cisplatin Platinum compound These are alkylating agents and act by similar mechanism. Drugs are - First generation -9 - Cisplatin Second generation - Carboplatin Third generation - Oxaliplatin Side effects of Cisplatin Vomiting Ototoxicity Hyperuricemia Nephrotoxicity Neuropathy Note ? Cisplatin is mo... | 17,728 | medmcqa_train |
Which is a fructosan | The polysaccharide of glucose (glucosan or glucan):- starch, glycogen, cellulose, dextrin, dextran, chitin
The polysaccharide of fructose (fructosan) :- Inulin | 17,729 | medmcqa_train |
In ulcerative colitis, after colectomy least likely to resolve is: | Extraintestinal Manifestations of Ulcerative Colitis Ahritis Ankylosing spondylitis Erythema nodosum Pyoderma gengrenosum Primary sclerosing cholangitis (PSC) Colectomy has no effect on the course of PSC in UC. Pyoderma gangrenosum is more common in UC. MC cutaneous manifestation of IBD: Erythema nodosum Erythema nodos... | 17,730 | medmcqa_train |
A child can Sit in Tripod position at which month? | Developmental milestones:- GROSS MOTOR DEVELOPMENT: 2 months: Holds head in plane of rest of the body when held in ventral suspension. In prone position in bed, the chin lifts momentarily. 3 months:lift head above the plane of the body. Head control stas by 3 months and fully developed by 5 months. 4 months:Remain on f... | 17,731 | medmcqa_train |
All the following adverse effects can be caused by Loop Diuretics EXCEPT: | ANSWER: (A) HypercalcemiaREF: KDT 6th edition page 567"Loop diuretics on chronic use cause hypocalcaemia while thiazides cause hypercalcemia" Adverse effect specific to Loop Diuretics:Hearing lossHypocalcaemiaExcess use causes dehydration & fall in bp.Adverse effect specific to thiazide Diuretics:HypercalcemiaAdverse e... | 17,732 | medmcqa_train |
Anterolateral arthroscopy of knee is for: | (a) To see patellofemoral articulationExplanationStandard portals in knee arthroscopy1. Anterolateral portal- Almost all the structures within the knee joint can be seen except the posterior cruciate ligament, the anterior portion of the lateral meniscus, and the periphery of the posterior horn of the medial meniscus i... | 17,733 | medmcqa_train |
Hypothyroidiam is caused by which of the following antitubercular drug | Refer KDT 6/e p743 PAS Ethionamide They can lead to hypothyroidiam | 17,734 | medmcqa_train |
Gallow&;s traction is used for | (A) (Fracture shaft femur) (861 Apley 9th)GALLOWS- TRACTION- is used for treatment of fracture shaft femur in infants and children < 2 years of age* Weight must not be more than 12 kg* Both the fractured and the normal femur are placed in skin traction and the infant is suspended by these from a special frame. The butt... | 17,735 | medmcqa_train |
Most common mitochondrial enzyme for metabolism detoxification reaction is ? | Ans. is 'a' i.e., CYP 3A4 Subtypes of cytochrome P-450 Depending upon the extent of amino acid sequence homology, the cytochrome P-450 (CYP) isoenzymes are grouped into families designated by capital letters (A, B, C ....). Individual isoenzymes are again alloted numerals (1, 2, 3 ....). Examples are CYP1A2, 2A6, 2B6, ... | 17,736 | medmcqa_train |
All of the following statements about acute adrenal insufficiency are true, EXCEPT: | Adrenal insufficiency is associated with decreased levels of glucocoicoids, mineralocoicoids and androgens. Normally coisol is involved in hepatic glycogen synthesis, gluconeogenesis and release of glucose into the circulation. So in adrenal insufficiency, deficiency of coisol results in hypoglycemia. Adrenal insuffici... | 17,737 | medmcqa_train |
Lardaceous spleen is a feature of: March 2010 | Ans. B: AmyloidosisSpleen is more frequently the seat of amyloidos is than any other organ, and that it appears in a majority of cases to be the organ primarily affected.There are two forms of amyloid disease, called respectively the Sago form and the diffuse form or waxy spleen, to which a third or combined form may b... | 17,738 | medmcqa_train |
Paradoxical sleep is? | Ans. B REM sleepRef: Ganong, 25th ed. pg. 274* In REM sleep, the high amplitude slow waves in EEG during sleep are periodically replaced by rapid low voltage EEG activity which is identical to awake aroused state.* Now the point is that the person is sleeping while EEG record is like that of an awake patient. Hence REM... | 17,739 | medmcqa_train |
The definition of prolonged seizures following ECT is: | Prolonged seizures - seizures lasting more than 180 seconds * Prolonged seizures can be terminated either with additional doses of the barbiturate anesthetic agent or with IV diazepam * Methohexital can also be used to abo prolonged seizures in ECT or to limit postictal agitation. Extra edge: Tardive Seizures Additiona... | 17,740 | medmcqa_train |
Schwartz operation is done in - | Indications of simple / cortical mastoidectomy (Schwartz operation)
Acute coalescent mastoiditis.
Incompletely resolved acute otitis media with reservoir sign.
Masked mastoiditis.
As a initial step to perform:
Endolymphatic sac surgery
Decompression of facial nerve
Translabyrinthine or retrolabyrinthine procedures f... | 17,741 | medmcqa_train |
A child with hypoglycemia is not able to utilize glucose from glycogenolysis or gluconeogenesis. Which of the following enzyme is deficient in the child? | Ans. c. Glucose 6-phosphatase (Ref: Harrison 19/e p433e-1, 433e-2t, 433e-5f, 436e-5, 18/e p3200, 3201; Harper's 27/e p166)Diagnosis of a child with hypoglycemia is not able to utilize glucose from glycogenolvsis or gluconeogenesis is Von Gierk's disease. Von Gierk's disease is due to the deficiency of glucose-6 phospha... | 17,742 | medmcqa_train |
Which one of the following is not Included in Jone's Major criteria - | Ref: R Alagappan - Manual of Practical Medicine 4th Edition.pg no:146 Jones Criteria for Diagnosis ofRheumatic FeverMajor CriteriaCarditisPancarditis, seen in 50-60% of patients, develops withinthe first 2 weeks of rheumatic fever. Pericarditis isevidenced by presence of a pericardial rub, myocarditisby tachycardia, so... | 17,743 | medmcqa_train |
Risk of HIV trasnmission is not seen with - | The danger of needle stick injury is present in medical and paramedical personnel,though the chance of infection are much less than with hepatitis B infection. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO-583 | 17,744 | medmcqa_train |
Papillary Ca thyroid usually presents as | "Most patients are euthyroid and present with a slow-growing painless mass in the neck Dysphagia, dyspnea, & dysphonia are usually associated with locally advanced invasive disease. Lymph node metastases are common, especially in children and young adults, and may be the presenting complaint so-called 'lateral aberrant... | 17,745 | medmcqa_train |
All of the following are true about X linked dominant diseases, except | X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome. As an inheritance pattern, it is less common than the X-linked recessive type. In medicine, X-linked dominant inheritance indicates that a gene responsibl... | 17,746 | medmcqa_train |
Which of the following intravenous anaesthetic agent has extrahepatic additional route of metabolism - | The clearance rate of Propofol exceeds hepatic blood flow, suggesting that an extrahepatic route of elimination also contribution its clearance. since propofol has extrahepatic and extrarenal route of metabolism its metabolism is never delayed in hepatic and renal failure. | 17,747 | medmcqa_train |
Prolonging a person's life through technological means is known as :? | Ans. is 'a' i.e., Dysthanasia In medicine, dysthanasia means "bad death" and is considered a common fault of modern medicine: Dysthanasia occurs when a person who is dying has their biological life extended through technological means without regard to the person's quality of life. | 17,748 | medmcqa_train |
Micronodular cirrhosis is seen in all EXCEPT | MICRONODULAR CIRRHOSIS < 3.0 mm MACRONODULAR CIRRHOSIS >3.0 mm Micronodular cirrhosis Macronodular cirrhosis -Alcohol Chronic Hep B or Hep C -Hemochromatosis Wilson's disease -Extra hepatic biliary obstruction a-1 antitrypsin deficiency -Veno occlusive disease -Indian childhood cirrhosis | 17,749 | medmcqa_train |
All of the following may be used for premedication except | Diazepam (benzodiazepine) is used for relieving anxiety, inducing good sleep and producing amnesia. Opioids for producing analgesia and atropine (anticholinergics) for drying up the secretions. Pancuronium is non-depolarizing muscle relaxant used during surgery to produce muscle relaxation. REf KATZUNG 12TH ed. | 17,750 | medmcqa_train |
Hyperkalemia with no ECG finding. The drug that should not be used isaEUR' | Calcium gluconate (Also see AIIMS May 2010) . Calcium gluconate is the fastest acting agent used in t/t of hyperkalemia. . In acts within nzinutes but an impoant point to note is that it does not cause transcellular movement of potassium, instead it acts on cell membrane. - It stabilizes the cardiac cell membrane and r... | 17,751 | medmcqa_train |
Nerve supply of Lacrimal Gland is: | Ans. A. Greater Petrosal NerveThe lacrimal nerve, derived from the ophthalmic nerve, supplies the sensory component of the lacrimal gland. The greater petrosal nerve, derived from the facial nerve, supplies the parasympathetic autonomic component of the lacrimal gland. The greater petrosal nerve traverses alongside bra... | 17,752 | medmcqa_train |
Deficit in weight for height in a 3 year old child indicates - | Weight reflects only the present health status of the child, the height indicate the events in the past also. So reduced weight for height denotes acute malnutrition. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 501 | 17,753 | medmcqa_train |
Beta blockers are antiarrhythmic agents of type: | II | 17,754 | medmcqa_train |
BIRADS stage 5 is | <img src=" /> Source : Internet | 17,755 | medmcqa_train |
Embryonic phase of development is from - | Ans. is 'b' i.e., 4th to 8th week * The development of a new individual in the uterus involves three phasesi) Pre-embro phase or germinal phase (day 0-3 weeks).ii) Embro phase or embryonic period (weeks 4-8).iii) Fetal phase (weeks 8-38). | 17,756 | medmcqa_train |
Testicular neoplasms account for 1% to 2% of all male-specific malignant neoplasms. Which of the following is NOT TRUE about testicular tumor? | Non-seminomatous germ cell tumors (NSGCTs) tend to be more aggressive than pure seminomas, spreading earlier the bloodstream, with most patients having disease outside the testis at presentation. Seminomas tend to spread lymphatics initially, with late hematogenous spread. Seminomas are quite radiosensitive, and diseas... | 17,757 | medmcqa_train |
Pigmentation and icthyosis are side effects of ? | Ans. is 'a' i.e., Clofazamine Clofazimine Clofazimine is a leprostatic drug. It acts by interfering the template function of DNA. Adverse effects of clofazimine | 17,758 | medmcqa_train |
Median Nerve supplies all EXCEPT: | ANSWER: (B) Adductor pollicisREF: http://en.wikipedia.org/wiki/Median_nerve, Grays anatomy, 39th edition, P 931,932 See chart of previous question for explanation | 17,759 | medmcqa_train |
Which of the following statements about Pancreatic Carcinoma is not true? | Prognosis in Carcinoma Pancreas Five-year survival after curative resection (pancreaticoduodenectomy) approaches 15-20 % Overall, 5 year survival rate with pancreatic cancer is 5 % Median survival in Carcinoma Pancreas Resectable disease (Stage I and II) 15-20 months Locally advanced disease (Stage III) 6-10 months Met... | 17,760 | medmcqa_train |
Which of the following is used in the treatment of Hepatocellular carcinoma ? | Sorafenib is a Tyrosine Kinase inhibitor which is the drug of choice for Hepatocellular carcinoma. | 17,761 | medmcqa_train |
Lecithin-Sphingomyelin ratio is used for: | a. Lung maturity(Ref: Nelson's 20/e p 2088-2093, Ghai 8/e p 379-381)By 35 wk of gestation, the lecithin: sphingomyelin (L:S) ratio averages about 2:1, indicative of lung maturity. | 17,762 | medmcqa_train |
Comedones are seen in- | Acne causes polymorphous cutaneous lesions such as comedones, papules, pustules, pseudocysts and abscesses which may leave scarring.comedones are the characteristic of acne vulgaris. Reference Harrison20th edition pg 1204 | 17,763 | medmcqa_train |
Microalbuminuria is defined as protein levels of- | Types of Proteinuria The following five types of proteinuria are distinguished by milligrams (mg) of protein measured during a 24-hour urine collection: Microalbuminuria (30-150 mg) Mild (150-500 mg) Moderate (500-1000 mg) Heavy (1000-3000 mg) Nephrotic range (more than 3500 mg) As kidney disease progresses, more prote... | 17,764 | medmcqa_train |
General paralysis of insane is associated with ? | Ans, A. NeurosyphillisGeneral paresis, also known as general paralysis ofthe insane or paralytic dementia, is a severe neuropsychiatric disorder, classified as an organic mental disorder and caused by the chronic meningoencephalitis that leads to cerebral atrophy in late-stagesyphilis.Degenerative changes are associate... | 17,765 | medmcqa_train |
Cu T with 10 years life is? | ANSWER: (A) Cu 380 AREF: Park 20th edition page 427The T-Cu-38GA has been approved for use for 10 yearT-Cu 200 - 4 yrsNova T - 5 yrsProgestsert - 1 yrs | 17,766 | medmcqa_train |
Sabre Tibia | D i.e. Syphilis Recurrence of the chancre in its original place due to relapse (not re-infection) in early syphilisQ is called chancre redux. - Vesico - Bullous lesion are charcterstically seen in early congenital syphilisQ & not found in other stages of syphilis. Interstitial keratitis, along with 8th nerve deafness &... | 17,767 | medmcqa_train |
Which statements are true about E.coli chromosomal DNA in relation with eukaryotic chromosomal DNA? | A circular bacterial chromosome is a bacterial chromosome in the form of a molecule of circular DNA. Unlike the linear DNA of most eukaryotes, typical bacterial chromosomes are circular.Most bacterial chromosomes contain a circular DNA molecule - there are no free ends to the DNA. Free ends would otherwise create signi... | 17,768 | medmcqa_train |
Disease in which of the following lobes of the brain can manifest as psychiatry illness? | all neurological disorders affecting the frontal coex can present with psychiatric presentations pathology in orbitofrontal coex presents with disinhibition, social inappropriateness pathology in dorsolateral pReferencerontal coex presents with disturbance in planning , programming and execution pathology in medial pRe... | 17,769 | medmcqa_train |
Most common cause of Aoic dissection ? | Ans. is 'a' i.e., Hypeensiono More than 90% of dissections occur in men between the age of 40 and 60 with antecedent hypeension. Other causes of dissection.o Marfan syndrome causing cystic medial necrosis (second most common).o Ehlers - Danlos syndrome.o Inflammatory aoitis --> Takayasu's disease, Giant cell aeritis.o ... | 17,770 | medmcqa_train |
Which of the following condition is true about Barrett oesophagus | Refer Robbins page no Pg 7579/e Damage to the lower poion of the tube that connects the mouth and stomach (oesophagus). Barrett's oesophagus is usually the result of repeated exposure to stomach acid. It's most often diagnosed in people with long-term gastro-oesophageal reflux disease (GERD). * The protein AGR2 is elev... | 17,771 | medmcqa_train |
A 75-year-old patient suffering from congestive hea failure accidentally ingests a toxic dose of digoxin. Clinical consequences due to the toxic effects of cardiac glycosides are likely to include | Digoxin adverse effects- CNS effects, visual manifestations, arrhythmia and GI symptoms. Digoxin inhibits Na+/K+-ATPase and impairs the uptake of K+ by skeletal muscle, such that digoxin overdose predictably results in hyperkalemia. | 17,772 | medmcqa_train |
Naltrexone is: March 2013 | Ans. C i.e. lc antagonist Naltrexone is an opioid receptor antagonist used primarily in the management of alcohol dependence and opioid dependence. | 17,773 | medmcqa_train |
Cause of Farmer's lung – | Farmer's lung is caused by Hay or grain dust. | 17,774 | medmcqa_train |
More than normal posterior angle indicate: | Rakosi- Jarabak analysis
The sum of posterior angles i.e. the cranial base (N–S–Ar), articular (S–Ar–Go), and gonial angles (Ar–Go–Me)> 396 degrees indicates clockwise direction of growth i.e. vertical growth.
The sum of posterior angles i.e. the cranial base (N–S–Ar), articular (S–Ar–Go), and gonial angles (Ar–Go–Me... | 17,775 | medmcqa_train |
Which of the following is a bacteria taxonomically - | Ans. is 'a' i.e., Chlamydia; 'b' i.e., Rickettsia; 'c' i.e., Mycoplasma Bacteria . Bacteria are single celled microorganisms which can exist either as independent (free living) organisms or as parasites (dependent on other organisms for life). . There are typically 40 million bacterial cells in a gram of soil and 1 mil... | 17,776 | medmcqa_train |
S, ejection click & severe pulmonary stenosis relation is- | Mechanism of inspiratory softening of the pulmonary ejection click. Left-sided ejection clicks occur in the presence of a dilated aoa or aoic valve abnormalities. Ejection clicks occur with flexibly stenotic aoic valves and with nonstenotic bicuspid aoic valves.gap reduces in severe pul monary stenosis Ref Davidson 23r... | 17,777 | medmcqa_train |
All of these are branches of maxillary nerve in pterygopalatine fossa except: | Infraorbital nerve emerges within the orbit.
Gives 2 branches:
Middle superior alveolar nerve - arises in infraorbital groove.
Anterior superior alveolar nerve - arises in infraorbital canal.
Branches of maxillary nerve in pterygopalatine fossa:
Zygomatic nerve:-
Zygomaticotemporal
Zygomaticofacial
Ganglionic br... | 17,778 | medmcqa_train |
Which one of the following is TRUE about amoebic meningoencephalitis? | (B) Trophozoites are found in the CSF> Amebic meningoencephalitis is mainly caused by the free-living ameba of the genera Acanthamoeba, Naegleria, and Balamuthia which are distributed throughout the world.> Naegleria infection--primary amoebic meningoencephalitis is caused by N. fowled followed the aspiration of water ... | 17,779 | medmcqa_train |
Shoest acting benzodiazepine is | Ans. is 'c' i.e., Triazolam | 17,780 | medmcqa_train |
Which nut has highest protein content - | Nuts and oilseeds Included in this group are groundnut (Peanut), cashewnut, coconut, walnut, almonds, pistachio, mustard seeds, sesame seeds, cotton seeds, sunflower seeds, maize germ and many others from which cooking oils are extracted. Nuts and oilseeds contain good amount of fat and good quality protein in a relati... | 17,781 | medmcqa_train |
Which of the following is not associated with malignancy - | Down syndrome is associated with incrased risk of leukemia. _____ Harrison | 17,782 | medmcqa_train |
The initial treatment of choice for secondary hyperparathyroidism in renal osteodystrophy is: | Answer is D (Phosphate Binders) The initial treatment of secondary hyperparathyroidism in renal osteodystrophy is management of high phosphate levels by dietary restriction and the use of Phosphate binders The objectives of management are to maintain blood levels of calcium and phosphorous to as close to normal as poss... | 17,783 | medmcqa_train |
To rule out rheumatoid ahriis, most impoant among the followings is - | Answer- B. HLA DR4DR4 is strongly associated with RA (also with Type 1 DM Pemphigus vulgaris). | 17,784 | medmcqa_train |
Double rise of temperature in 24 hrs is seen in case of - | Double rise of temperature in 24 hrs is seen in case of Kala azar. Option 1, 2, 3, 4 1. L. donovani donovani, infection of the classic kala-azar ("black sickness") or dumdum fever type occurs in many pas of Asia, Africa and Southeast Asia. 2. Kala-Azar Fever: In the early stages of the disease, there is a mild irregula... | 17,785 | medmcqa_train |
The most common benign tumour of the orbit is: | Ans. Haemangioma | 17,786 | medmcqa_train |
Number of ATP molecules and NADH formed in each cycle of glycolysis | Glycolysis Site of occurrence Cytosol Aerobic glycolysis Glucose - Pyruvate ; 8 ATP Anaerobic glycolysis Glucose - Lactate ; 2 ATPReaction occurring in aerobic conditions only Glyceraldehyde 3 phosphate - 1,3- bisphosphoglycerate Inhibitors Glyceraldehyde 3 phosphateIodo acetate 1,3 bisphosphoglycerate Arsenite Enolase... | 17,787 | medmcqa_train |
Which of the following feature differentiates between delirium from dementia? | Altered sensorium and confusional state is seen only in delirium which is absent in dementia. | 17,788 | medmcqa_train |
Enzyme specificity is given by - | Ans. is "a' i.e., Km "The of an enzyme is the concentration of the substrate that enables the enzyme to function at half maximum activity and is therefore a measure of the specificity of a substrate for the enzyme"___________Clinical biochemistryo Actually enzyme specificity is not measured by Km alone.o It is measured... | 17,789 | medmcqa_train |
For myositis ossificans, main cause is? | Myositis ossificans progressive is a disease of unknown etiology characterised by formation of fibrous tissue and bone within interstitial tissues of muscles, tendons, fascia, ligaments, aponeurosis and even the skin. Most cases of myositis ossificans occur as a result of trauma, and thus the main demographic is young ... | 17,790 | medmcqa_train |
The lung abscess in children can be caused by all except – | Lung abscess in children
Lung abscess is most likely to occur in -
i) Immunocompromized patients
ii) Those with recurrent aspiration
iii) Malnutrition
iv) Blunt chest trauma
v) Complication of pneumonia
Organisms commonly causing lung abscess are -
Staph. aureus
H.influenzae
S. pneumoniae
Pseudomonas
E.coli ... | 17,791 | medmcqa_train |
IQ 25-50 is suggestive of: | Intellectual disability is a general term used when an individual’s intellectual development is significantly lower than average and his or her ability to adapt to the environment is consequently limited. The condition varies in severity and cause. They were described using the terms
Idiot (IQ below 25)
Imbecile (IQ... | 17,792 | medmcqa_train |
Drug of choice for familial hypercholesterolemia ? | Ans. is 'c' i.e., Lovastatin | 17,793 | medmcqa_train |
Which is not an osteoplasty technique: | Steps in osseous respective surgery
Vertical grooving and Radicular blending → Osteoplasty techniques flatting of interproximal bone and gradualizing marginal bone → Osteotomy | 17,794 | medmcqa_train |
Low bih weight babies are at a higher risk of dying in the firstweek because | Ref:Park's Text book of Preventive and Social Medicine 25th ed | 17,795 | medmcqa_train |
Visual hallucinations are least likely to be found in which of the following? | Visual hallucinations are most common in organic psychiatric disorders. Though, visual hallucinations can be seen in schizophrenia, they are not as common. M/C hallucination seen in patient of schizophrenia is auditory hallucination. | 17,796 | medmcqa_train |
Digitalic toxicity produce the following changes in ECG except - | Ans. is 'b' i.e., Prolongation of QT interval ECG changes produced by digitalis o First see the relation of ECG and cardiac cycle. P wave represents atrial depolarization. QRS complex represents ventricular depolarization. PR interval represents conduction through AV node. QT interval corrosponds with ventricular depol... | 17,797 | medmcqa_train |
Which of the following has malignant potential: | Ans. (b) EBV Ref. jawetz 25/e, p 592, 27/e, p 620 Already explained, refer Ans. 46 | 17,798 | medmcqa_train |
Normal limit for postprandial (after 2 hours) blood glucose level (in mg/dL): March 2008 | Ans. A: 80-110 | 17,799 | medmcqa_train |
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