query stringlengths 1 1.57k | pos stringlengths 1 22.5k | idx int64 0 161k | task_name stringclasses 1
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|---|---|---|---|
McBurney's point corresponds to which pa of appendix: | Base | 155,800 | medmcqa_train |
Muscle not supplied by median nerve REPEATED | Opponens pollicis, abductor pollicis brevis and first lumbrical is supplied by the recurrent branch of median nerve in palm.Extensor pollicis brevis is supplied by the deep division of radial nerve in the forearm.B D Chaurasia 7th edition Page no: 182 | 155,801 | medmcqa_train |
Thyroid malignancies appear on USG as | On sonography, thyroid tumors are solid,hypoechoic masses. | 155,802 | medmcqa_train |
Which micronutrient deficiency causes anemia? | Ans. is 'a' i.e., CopperCopper containing protein ceruloplasmin is necessary for transpo of iron in the Ferric form across membranesCopper is an integral component of ALA synthase, which is necessary for heme synthesisCopper helps in the uptake of iron across normoblasts | 155,803 | medmcqa_train |
A 45-year-old female has a solitary gall stone 1.5 cm in size which was incidentally diagnosed by ultrasound. She has no symptom. What should be the best line of management? | Cholecystectomy only if she develops biliary colic * Symptomatic gallstones are the main indication for cholecystectomy. * Absolute contraindications for the procedure are uncontrolled coagulopathy and end-stage liver disease. | 155,804 | medmcqa_train |
Which one of the following is not seen in pheochromocytoma | Refer Robbins page no 1135 The dominant clinical manifestation of pheochromocytoma is hypeension observed in 90 percnt of patients.Approximately two thirds of patients with hypeension demonstrate paroxysmal episodes which are described as an abrupt precipitation elevation in blood pressure | 155,805 | medmcqa_train |
Most common site of venous thrombosis: March 2013 | Ans. B i.e. Veins of lower extremity Commoner sites of venous thrombosis includes deep vein in the lower extremity below the knee and superficial saphenous, hepatic and renal veins; dural sinuses. | 155,806 | medmcqa_train |
Duffy antigen is present in: | Ans. (c) P. VivaxRef: Microbiology by Ananthanarayan and Paniker 8th ed. 1694* Duffy antigen/chemokine receptor (DARC) also known as CD234, is a protein that in humans is encoded by DARC gene.* The Duffy antigen is located on the surface of red blood cells.* The Duffy antigen protein is also the receptor for the human ... | 155,807 | medmcqa_train |
Hea failure cells are? | Breakdown of red cells and hemoglobin leads to the appearance of hemosiderin-laden alveolar macrophages-- so-called hea failure cells--that reflect previous episodes of pulmonary edema. (Robbins Basic Pathology,9th edition,pg no.367) | 155,808 | medmcqa_train |
Prolactinoma in pregnancy, all are true except: | Prolactinoma pituitary adenoma Prlactin level is >100ng/dl most are microadenoma<1cm diameter macroadenoma has bad prognosis visual field examination is essential to detect any compression effect on the optic nerves D.C.DUTTA&;S TEXTBOOK OF GYNECOLOGY,Pg no:464,6th edition | 155,809 | medmcqa_train |
Not true about red degeneration of myomas is : | Ans. is b i.e. Immediate Surgical intervention is required Lets see each option one by one. Red Degeneration of fibroid commonly occurs during pregnancy. (Option "a" is thus correct) The pathogenesis of fibroid is obscure but the initial change appears to be one of sub acute necrosis which is presembly due to an interf... | 155,810 | medmcqa_train |
Stuart's medium is a transport media for | Stuart's and Amies medium are transport media for Neisseria. | 155,811 | medmcqa_train |
Which of following is not seen in nephritic syndrome: | d. Hypocholesterolemia(Ref: Nelson's 20/e p 2521-2528, Ghai 8/e p 477-482)Features of nephritic syndrome are: Hematuria and RBC casts, Nephritic range Proteinuria (<3.5g/day), hence edema is present, Hypertension, Uremia and Oliguria. | 155,812 | medmcqa_train |
Fulminant hepatic failure can be caused by | The first modern halogenated volatile anesthetic, halothane, was introduced in 1955. Clinical exposure to halothane is associated with two distinct types of hepatic injury. Subclinical hepatotoxicity occurs in 20% of adults who receive halothane. It is characterized by mild postoperative elevations in alanine aminotran... | 155,813 | medmcqa_train |
Hartnup disease can present with: | Ans. (a) Pellagra like symptomsRef: Harrisons 20th ed. P 3021Hartnup Disease* It is an AR condition, mainly seen due to defect in the transport of tryptophan and other neutral amino acids from the renal tubules and intestine* Molecular defect: SLC6A19 gene (encode transporter protein of these amino acid)Clinical Featur... | 155,814 | medmcqa_train |
A 8-year-old boy presents with petechiae, azotemic oliguria and altered sensorium, in casualty. There is a history of diarrhoea for the past 5 days. The clinical diagnosis is – | Hemolytic uremic syndrome
HUS is characterized by the triad of -
Anaemia (microangiopathic hemolytic anaemia)
Renal failure (microangiopathy of kidney involving glomerular capillaries and arterioles).
Thrombocytopenia (due to platelet destruction)
HUS is common in children under 2 years of age. (But may also occu... | 155,815 | medmcqa_train |
True about Hb dissociation curve: | Oxygen-hemoglobin dissociation curve is shifted to right in the following conditions:
Decrease in partial pressure of oxygen.
Increase in partial pressure of carbon dioxide (Bohr effect).
Increase in hydrogen ion concentration and decrease in pH (acidity).
Increased body temperature.
Excess of 2,3-diphosphoglycera... | 155,816 | medmcqa_train |
Regarding the antibacterial action of gentamicin, which of the following statements is most accurate? | (Ref:Katzung 10/e p756, 757) Aminoglycosides show concentration dependenbt killing and prolonged post antibiotic effect. For details, refer to text. | 155,817 | medmcqa_train |
Actinomycetoma is caused by: | Bacteria | 155,818 | medmcqa_train |
An important clinical feature of a concussed tooth is: | Concussion
Tooth is not displaced.
Mobility is not present.
Tooth is tender to percussion because of edema and hemorrhage in the periodontal ligament.
Pulp may respond normal to testing. | 155,819 | medmcqa_train |
Which component of the eye has maximum refreactive index | centre of the lens Repeat from Nov 08 Refractive index of each component of the eye as optical system Refractive medium Refractive index Air 1.000 Cornea ea 1.376 Aqueous humour 1.336 Lens (coex-core) 1.386-1.406 Vitreous humour 1.336 "The refractive indices of the successive layers of the lens increase from the periph... | 155,820 | medmcqa_train |
Which of the following extraocular muscle of the eye is involved in intorsion, depression and abduction of the eyeball? | Superior oblique muscle of the eye innervated by the trochlear nerve is involved in intorsion (primary action), depression (secondary action) and abduction (teiary action) of the eyeball. Action of extraocular muscles: Muscle Primary action Secondary action Teiary action Medial rectus Adduction Lateral rectus Abduction... | 155,821 | medmcqa_train |
Which layer of epidermis is underdeveloped in the VLBW infants in the initial 7 days: | D i.e. Stratum corneum | 155,822 | medmcqa_train |
All of the following are side effects of tacrolimus, EXCEPT: | Side effects with the use of tacrolimus includes nephrotoxicity, hepatotoxicity, hypeension, tremor, seizures, diabetes mellitus, neuropathy and blurring of vision. No ototoxicity has been observed. Ref: KDT 6th Edition, Page 840; Immunopharmacology By Manzoor M. Khan, Pages 91-3; Goodman and Gilman's The Pharmacologic... | 155,823 | medmcqa_train |
Bacillus anthracis - | Anthrax is an endemic zoonosis in many countries; it causes human disease following inoculation of the spores of Bacillus anthracis. B. anthracis was the first bacterial pathogen described by Koch and the model pathogen for 'Koch's postulates' (see Box 6.1, p. 100). It is a Gram-positive organism with a central spore. ... | 155,824 | medmcqa_train |
Shift to right of oxygen dissociation curve is caused by all, EXCEPT: | Three impoant conditions affect the oxygen-hemoglobin dissociation curve: the pH, the temperature, and the concentration of 2,3-biphosphoglycerate (BPG; 2,3-BPG). A rise in temperature or a fall in pH shifts the curve to the right. When the curve is shifted in this direction, a higher PO2 is required for hemoglobin to ... | 155,825 | medmcqa_train |
Paralysis of 3rd, 4th, 6th nerves with involvement of ophthalmic division of 5th nerve, localizes the lesion | A i.e. Cavernous sinus Abrupt (sudden/ very rapid) onset of marked systemic features (high grade fever) with proptosis, chemosis especially with prostration, sequential ophthalmoplegia (i.e. initial lateal gaze involvement), bilateral involvement and mastoid edemaQ strongly suggest the diagnosis of cavernous sinus thro... | 155,826 | medmcqa_train |
False about Haptens is | Haptens are low molecular weight molecules. | 155,827 | medmcqa_train |
True about N2O – | N2O is least potent (MAC = 105%).
It has a good analgesic but poor muscle relaxant activity. | 155,828 | medmcqa_train |
Incidence of absent of kidney is | (1500) (1305-LB) (1286-B & L 25th)* An absent or grossly atrophic kidney is found in about 1:1400 individuals (1305-LB)* Renal ectopia - In approximately 1:1000 people, the kidney does not ascend, ectopic kidneys are usually found near the pelvic brim (1306-LB) | 155,829 | medmcqa_train |
BCG is not given to patient with - | <p>BCG Aim- To induce a benign,aificial primary infection which will stimulate an acquired resistance to possible subsequent infection with virulent tubercle bacilli, and thus reduce the morbidity and moality from primary tuberculosis among those most at risk. WHO recommends the &;Danish 1331&; strain for vaccine produ... | 155,830 | medmcqa_train |
Depression of consciousness level in hypothermia stas when the core body temperature falls below: COMEDK 14 | Ans. 32degC | 155,831 | medmcqa_train |
Most prevalent incidentaloma is: | Adrenal Incidentaloma- - Incidentally detected adrenal mass through imaging performed for unrelated disease Nonfunctioning adenoma - 82% of incidentalomas Preclinical cushing - 5% Pheochromocytoma - 5% Adrenocoical Ca - 5% Metastatic Ca - 2% Aldosterone producing adenoma - 1% | 155,832 | medmcqa_train |
Indomethacin can antagonize the diuretic action of loop diuretics by: | Loop diuretics release PGs that induce intrarenal hemodynamic changes which secondarily affect salt output. Indomethacin and other NSAIDs inhibit the formation of PG. Therefore, NSAIDs blunt the action of loop diuretics. | 155,833 | medmcqa_train |
Human Development Index is | Ans. b (Knowledge, Longevity and Income). (Ref. Park PSM 22nd /pg. 16).# HUMAN DEVELOPMENT INDEX- Consist of three dimensions:- Longevity (life expectancy at birth);- Knowledge (Adult literacy rate and mean years of schooling); and- Income (real GDP per capita in purchasing power).- The HDI ranges between 0 to 1.- In I... | 155,834 | medmcqa_train |
Method of sterilization which is least effective is: | Ans. is d i.e. Hysteroscopic tubal occlusion Coplc tubal occlusion Cauterisation (Failure rate 30%) Sclerosants (Failure rate 15%) I - Due to high failure rate these methods are obsolete now Hysteroscopic tubal occlusion is done by 2 methods and both these methods have high failure rates. Also Know : Pomeroy's method 0... | 155,835 | medmcqa_train |
The drug of choice for prevention of seizures in a patient with severe preeclampsia is | given by i.v. infusion, it has been used for long to control convulsions and to reduce BP in toxaemia of pregnancy. As per WHO, it is the drug of choice for prevention and treatment of seizures in preeclampsia and eclampsia Ref: KD Tripathih 8th ed. page 333 | 155,836 | medmcqa_train |
All of the following forces are involved in antigen antibody reaction, EXCEPT: | Answer is D (Covalent bond) : The combination between antigen and antibody is effected during the primary stage of an Ag-Ab reaction. This reaction is essentially reversible and effected by the weaker intermolecular forces such as: Vander Waal's, Hydrogen bonds, Ionic bonds and not by the firmer covalent bonds. Frequen... | 155,837 | medmcqa_train |
Not true about deep cervical lymph nodes | The deep cervical lymph nodes are situated along the internal jugular vein, and include the jugulodigastric node below the posterior belly of the digastric and the jugulo-omohyoid node above the inferior belly of the omohyoid Ref : B D Chaurasia's Human Anatomy, seventh edition, volume 3 , pg. no. 100 ( fig. 8.28 - pg.... | 155,838 | medmcqa_train |
Which anesthetic agent is contraindicated in porphyria: | Ans: (c) ThiopentoneRef: KDT 6th ed./374* Thiopentone is an ultrashort acting thiobarbiturate because of rapid redistribution.* It has poor analgesic property.* I/v injection is very painful. Therefore it is contraindicated unless opioids or N2O has been given.* Contraindicated in porphyria patientsAlso Know*Etomidatei... | 155,839 | medmcqa_train |
Biconcave shape of RBC is due to binding of spectrin to- | Ans. is 'a' i.e., Ankyrin * RBCs biconcave shape is due to membrane cytoskeleton.* RBC membrane cytoskeleton contains a filamentous meshwork of proteins that form a membrane cytoskeleton along the entire cytoplasmic surface of membrane. The most abundant and most important protein in this membrane cytoskeleton is Spect... | 155,840 | medmcqa_train |
Lipid peroxidation of polyunsaturated lipids of subcellular membranes produces - | Lipofuscin is an insoluble pigment, also know n as lipochrome or wear-and-tear pigment.
Lipofuscin is composed of polymers of lipids and phospholipids in complex with protein, suggesting that it is derived through lipid peroxidation of polyunsaturated lipids of subcellular membranes.
Lipofuscin is not injurious to the ... | 155,841 | medmcqa_train |
A 35 years old man gets up from sleep with sudden onset breathlessness, anxiety, palpitation, shaking hand, profuse sweating, discomfort in chest & fear of dying. There is history of similar episodes in past. Physical examination is normal. Probable diagnosis is- | Ans. is 'a' i.e., Panic attack * Sudden onset of breathlessness, anxiety, palpitation and feeling of impending doom suggest the diagnosis of panic attack (severe anxiety)* A panic attack has following characteristics: -A. Discrete episode of intense fearB. Abrupt onset (sudden onset)C. Reaches as maximum within few min... | 155,842 | medmcqa_train |
Rhinophyma complicates- | Ans: B | 155,843 | medmcqa_train |
Hypoglycemia in new born is seen in:a) IUGRb) Mother with hypothyroidismc) Rh incompatibilityd) Macrosomiae) Hyperthyroidism | Hypoglycemia is defined as blood glucose of less than 40 mg/dL, irrespective of the gestational age.
Causes of hypoglycemia Let us see each option one by one.
Option ‘a’ IUGR
“Hypoglycemia is due to shortage of glycogen reserve in the liver as a result of chronic hypoxia”
Dutta Obs. 6/e, p 465
Option ‘b’ Mother with hy... | 155,844 | medmcqa_train |
Which of the following is the major anaplerotic enzyme? | Ans. a)Pyruvate carboxylase Anaplerotic (gap-filling) reactions are the reactions that replenish the depleted TCA cycle intermediates that were used up in the biosynthetic reactions. Oxaloacetate is the catalyst of TCA cycle. Thus, production of oxaloacetate is the major anaplerotic reaction. Intermediate Depleted (use... | 155,845 | medmcqa_train |
Toxoid is prepared from - | Ans. is 'a' i.e., Exotoxin Toxoids o Ceain organisms produce exotoxins e.g., diphtheria and tetanus bacilli. o The toxin produced by these organisms are detoxicated and used in the preparation of vaccines. o The antibodies produced neutralize the toxic moiety produced during infection, rather than act upon the organism... | 155,846 | medmcqa_train |
In pancoast tumor, following is seen except? | Answer is 'c' i.e. Haemoptysis Haemoptysis is seen in central tumors or endobronchial growth (Pancoast tumor is a peripheral tumor) Pancoast's tumor (also k/a superior sulcus tumor) Is a tumor of the apex of the lung It may grow to cause shoulder and arm pain - d/t involvement of C8, TI & 72 nerves Erosion of ribs Home... | 155,847 | medmcqa_train |
A patient presented with a 1 x 1.5 cms growth on the lateral border of the tongue. The treatment indicated would be. | Ans- B Interstitial brachytherapy Ref- Although this study is retrospective, the results are noteworthy, considering its long follow up and the description of results in terms of LCR, toxicities, and functional outcome. Our study recommends treating patients with brachytherapy alone in T1 stage and demonstrates the nee... | 155,848 | medmcqa_train |
Colour of nitrous oxide cylinder is? | N2O (blue) Cyclopropane (orange) Oxygen (black & white) Entonox (blue & white) | 155,849 | medmcqa_train |
A 45 year old female presents with 48 hour history of right upper quadrant pain, dyspnea, non-productive cough, fever with chills and rigor. The pain radiates to right shoulder tip. She has history of perforated duodenal ulcer repair 3 weeks ago. Temperature 39.3degC. O/E there is acute tenderness over right hypochondr... | Ans. (b) Subphrenic abscessRef: Bailey 26th edition Page 977* Bailey says- "Pus Nowhere, Pus Some where- search Pus Under the Diaphragm"* In a post op case (patient lying)- most dependent site of abscess formation is Subphrenic Space | 155,850 | medmcqa_train |
Donovan bodies are seen in ? | Ans. is 'd' i.e., Calymmatobacteriumgranulomatis | 155,851 | medmcqa_train |
Stroke volume is increased by - | Ans. is 'c' i.e., Increased end-diastolic volume and decreased end-systolic volume o The stroke volume is the amount of blood pumped out by left ventricle in each stroke.o Stroke volume is given by the difference between end-diastolic ventricular volume (the volume of blood in the left ventricle at the end of diastole;... | 155,852 | medmcqa_train |
When do we have to start antibiotics to prevent post-operative infection? | Prophylactic antibiotics are administered before the skin incision is made. Repeat dosing occurs at an appropriate interval, usually 3 hours for abdominal cases or twice the half-life of the antibiotic.
Perioperative antibiotic prophylaxis generally is not continued beyond the day of surgery. | 155,853 | medmcqa_train |
Comment on the diagnosis of the ECG tracing shown below. | Symmetry in PR interval before and after the missed beat --> Indicating Second degree AV block type 2: infranodal. In Second degree AV block type 1 --> Serial lengthening of PR interval before and after the missed beat. In Third degree AV block --> complete dissociation b/w atria and ventricles. | 155,854 | medmcqa_train |
A businessman notices a lump in front of his ear while shaving one morning. His wife thinks it has been there for several months. What is the most likely cause of a mass in the parotid gland in this patient? SELECT ONE. | Benign mixed tumor (pleomorphic adenoma) requires appropriate excision (superficial parotidectomy). If the tumor is shelled out, recurrence is likely. Approximately 80% of tumors of the salivary glands occur in the parotid gland. | 155,855 | medmcqa_train |
Grenz zone is absent in which type of leprosy | LEPROSY:- Ref:- Review of Dermatology by Alikhan; pg num:-303 | 155,856 | medmcqa_train |
Bone density is decreased in which of the following - | Osteoporosis is characterized by an abnormally low bone mass (reduced bone density) and defects in bone structure. | 155,857 | medmcqa_train |
Flexion of metacarpophalangeal joint is produced by? | Ans. is 'd' i.e., All of the aboveMetacarpophalangeal joints o These are ellipsoid joints between head of metacarpals and base of proximal phalanx. Movement at MCP joints are flexion, extension, abduction and adduction.Movement Muscles producing movementsFlexion Main muscles :- The lumbricals and the interossei. Suppoi... | 155,858 | medmcqa_train |
Thornwaldt cyst is also called as: | Thornwaldts bursa is also called as nasopharyngeal bursa, hence thornwaldts cyst is also called as Nasopharyngeal cyst. | 155,859 | medmcqa_train |
Best treatment for meningioma with low recurrence rate is | The best treatment for meningioma of low recurrence rate is complete tumour resection including resection of underlying bone and associated dura. The constant principles in meningioma resection are the following: If possible, all involved or hyperostotic bone should be removed. The dura involved by the tumor as well as... | 155,860 | medmcqa_train |
Condyloma acuminata is repoed on pap-smear as - | Ans. is'd'i.e.LSIL Cervical Precursor lesion associated with both low and high risk HPV subtypes.This category includes:Flat mature LSIL (flat condyloma or CIN-I)Mature Exophytic LSIL (exophytic condyloma, condyloma acuminatum)Extensive Exophytic LSIL (giant condyloma)Immature Exophytic LSIL (immature condyloma, squamo... | 155,861 | medmcqa_train |
Minamata disease in Japan is caused by toxicity of | (A) Mercury > Minamata disease (Chisso-Minamata disease), is a neurological syndrome caused by severe mercury poisoning. Symptoms include ataxia, numbness in the hands and feet, general muscle weakness, narrowing of the field of vision and damage to hearing and speech. In extreme cases, insanity, paralysis, coma and de... | 155,862 | medmcqa_train |
Glucose transpo along cell membranes occurs along with | The co-transpo system may either be a sympo or an antipo. In sympo, (Fig. 2.12) the transpoer carries two solutes in the same direction across the membrane, e.g. sodium-dependent glucose transpoer (Chapter 8). Phlorhizin, an inhibitor of sodium-dependent co-transpo of glucose, especially in the proximal convoluted tubu... | 155,863 | medmcqa_train |
Verocytotoxin of E. coli acts by - | Ans. is 'c' i.e., Decreasing protein synthesis | 155,864 | medmcqa_train |
A patient with acute psychosis, who is on haloperidol 20 mg/day for last 2 days, has an episode characterized by tongue protrusion, oculogyric crisis, stiffness and abnormal posture of limbs and trunk without loss of consciousness of last 20 minutes before presenting to casualty. This improved within a few minutes afte... | Antipsychotic drugs Extrapyramidal symptoms- dur to D2 blockade in limbic system Extrapyramidal symptoms Clinical features Special DOC Acute dystonia Oculogyric crisis ocular muscles spasm and opisthotonos Toicollis Protrusion of tongue leading to laryngospasm Grimacing Earliest to develop (days) Anticholinergic drugs ... | 155,865 | medmcqa_train |
Blanket/ mass treatment is indicated in all EXCEPT: September 2004 | Ans. D i.e. Dengue fever | 155,866 | medmcqa_train |
Mucin layer tear flilm deficiency occurs in: | A i.e Keratoconjunctivitis sicca | 155,867 | medmcqa_train |
Reactive ahritis is a result of exposure to all of the following, EXCEPT: | Reactive ahritis is an inflammatory condition that occurs after exposure to ceain gastrointestinal and genitourinary infections, paicularly Chlamydia species, Campylobacter jejuni, Salmonella enteritidis, Shigella, and Yersinia. Patients may give a history of an antecedent genitourinary or dysenteric infection 1 to 4 w... | 155,868 | medmcqa_train |
Dose of Vit D in children with malnutrition - | Vitamin A deficiency treatment: Vitamin A on days 1,2 and 14 each Age >12 months - 200,000 IU Age 6-12 months - 100,000 IU for age 0-5 months - 50,000 IU Ref: Guidelines for the inpatient treatment of severely malnourished children, WHO Pgno : 23 | 155,869 | medmcqa_train |
All are components of basement membrane except | Ans. is 'd' i.e. Rhodopsin Basement membrane is a part of extracellular matrix Extracellular matrix is composed ofCollagenThey are family of proteins which provide structured support to the multicellular organisms.It is the main component of tissues such as fibrous tissue, bone, cartilage, valves of heart, cornea, base... | 155,870 | medmcqa_train |
The following are the contraindications of BAL except: | BAL (British anti-lewisite, dimercaprol): It is used in arsenic, lead, bismuth, copper, mercury, gold and other heavy metal poisoning. Dose: 10% solution in oil, 3-5 mg/kg IM 4 hourly for 2 days, 6 hourly on 3rd day and then 12 hourly for next 10 days. Side effects: Nausea, vomiting, headache and hypeension. Contraindi... | 155,871 | medmcqa_train |
A neonate presented on day one of life with bilious vomiting. First investigation to be done is: | Ans. b. Babygram (Ref: Nelson 19/e p1278; Sabiston 19/e p1841-1842; Schwartz 9/e p1427-1428; Bailey 26/e 120, 25/e p85; Shackelford 7/e p811-813)A neonate presented on day one of life with bilious vomiting. First investigation to be done is Babygram (full body radiograph of the baby) to rule out duodenal atresia. Babyg... | 155,872 | medmcqa_train |
In atrial septal defect, the aoa is | The chest x-ray film is often, but not always, abnormal in patients with significant ASD. Cardiomegaly may be present from right hea dilation and occasionally from left hea dilation if significant mitral regurgitation is present in the patient with an ostium primum ASD. Right hea dilation is better appreciated in later... | 155,873 | medmcqa_train |
Which complex in mitochondria is not involved in proton transpor during ETC ? | Ans. is 'b' i.e., Complex IIInner mitrochondrial membrane is impermeable to protons; therefore, proton pumps are required to pump protons (hydrogen ions) from mitochondrial matrix to the intermembrane space.The complex I (Site I), complex III (Site II) and complex IV (Site III) act as proton pumps ejecting protons (hyd... | 155,874 | medmcqa_train |
False statement is | D i.e., Regulator gene is inducible | 155,875 | medmcqa_train |
Parvovirus B19 does not cause: | Ans. is 'a' i.e. Roseola infantum ParvovirusParvovirus is the smallest virus.It is a nonenveloped icosahedral virus with linear single stranded D.N.A.Pathogenesis of parvovirusParvovirus is highly tropic for human erythroid cells.The cellular receptors for parvovirus is blood group P antigen.P antigen is expressed on m... | 155,876 | medmcqa_train |
Barbiturates excretion in urine may be increased by- | In barbiturate poisoning, forced alkaline diuresis is used. | 155,877 | medmcqa_train |
All are features of raised intracranial tension in adults except: | Ans. Sutural diastasis | 155,878 | medmcqa_train |
The periphery of the retina is visualized with | The technique of examining the fundus of the eye is called ophthalmoscopy. In indirect ophthalmoscopy, a real and inveed image is formed between the condensing lens and the observer. The advantage of stereopsis (depth perception) and a larger field of view makes indirect ophthalmoscope (IDO) more useful both in retina ... | 155,879 | medmcqa_train |
Which of the following is a false statement about the respective fungal infections? | Microsporium doesn't involve nail. Trychophyton involves skin, nail and hair. | 155,880 | medmcqa_train |
Cell-matrix adhesions are mediated by? | The cell adhesion molecules (CAMs) are classified into four main families:- * Immunoglobulin family CAMs *Cadherins * Integrins: bind to extracellular matrix (ECM) proteins such as fibronectin, laminin, and osteopontin providing a connection between cells and extracellular matrix (ECM) * Selectins | 155,881 | medmcqa_train |
The Hb level is healthy women has mean 13.5 g/dl and standard detion 1.5 g/dl, what is the Z score for a woman with Hb level 15.0 g/dI - | Ans. is 'd' i.e., 1.0 Thus the Z score for the woman in question is 1.0. Very simple funda to calculate Z score Normal variate indicates that the given observation is how many standard detion away from the mean. Here mean is 13.5 g/c11, SD is 1.5 g/dl and observation is 15 g/dl. That means observation (15 g/dl) is 1 SD... | 155,882 | medmcqa_train |
Development of pellagra like skin lesion in carcinoid syndrome is due to: | One of the main secretory products of carcinoid tumors involved in the carcinoid syndrome is serotonin which is synthesized from tryptophan. Up to 50% of dietary tryptophan can be used in this synthetic pathway by tumor cells, and this can result in inadequate supplies for conversion to niacin; hence, some patients (2.... | 155,883 | medmcqa_train |
Drug of choice for absent seizures | Many children appear to have a genetic predisposition to absence seizures. In general, seizures are caused by abnormal electrical impulses from nerve cells (neurons) in the brain. Ref: KD Tripathi 8th ed. | 155,884 | medmcqa_train |
Which of the following is low flow Oxygen delivery device | A nasal cannula is generally used wherever small amounts of supplemental oxygen is required, without rigid control of respiration, such as in oxygen therapy. Most cannulae can only provide oxygen at low flow rates--up to 5 litres per minute (L/min)--delivering an oxygen concentration of 28-44%. Rates above 5 L/min can ... | 155,885 | medmcqa_train |
Which of the following is not an ester – | Bupivacaine is an amide. | 155,886 | medmcqa_train |
How will you check the quantitative assessment of liver function - | The determination of the galactose elimination capacity with the method according to Tygstrup is the only test which detects the "functional hepatocyte mass" and thus constitutes a quantitative test for the metabolic function of the liver. In this determination of the maximum hepatic elimination capacity, differences w... | 155,887 | medmcqa_train |
Which of the following is detected by the antigen detection test used for the diagnosis of P. Falciparum malaria | A useful approach is immunodiagnosis of malaria by detection of parasite-specific antigens using monoclonal antibodies The Para-Sight-F test (BD) is a dipstick antigen capture test targeting the "histidine-rich protein-2" (HRP-2), specific for P.falciparum. The test is sensitive, specific and rapid, results being ready... | 155,888 | medmcqa_train |
Iron overload occurs in all except | Ref Harrison 19 th ed pg 626, 673 Increased erythropoietin leads to increased haematopoasis and an increased demand for iron producing a state of iron deficiency. Polycythemia vera being a state of increased erythropoietin is a cause of iron deficiency rather than iron overload. | 155,889 | medmcqa_train |
A child is brought to the emergency depament with signs of meningeal irritation. She had suppurative otitis media in the last week. Infection of middle ear can spread to CNS through: | In the setting of middle ear infection, bacterial infection can invade through the round window causing acute suppurative labyrinthitis. From the labyrinth, bacteria gain access to the cochlear aqueduct, forming a conduit between the perilymph and the cerebrospinal fluid (CSF) resulting in meningeal infiltration. | 155,890 | medmcqa_train |
Strategies for prevention of Neonatall Tetanus include all of the following except - | <p> Injection penicillin to all neonate. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:310-313. <\p> | 155,891 | medmcqa_train |
Antibody in cold agglutin disease is | Cold agglutinin disease (CAD): This designation is used for a form of chronic AIHA that usually affects the elderly. First, the term cold refers to the fact that the autoantibody involved reacts with red cells poorly or not at all at 37degC, whereas it reacts strongly at lower temperatures. As a result, hemolysis is mo... | 155,892 | medmcqa_train |
Type I hypersensitivity is mediated by which of the following immunoglobulins ? | Harshmohan textbook of pathology 7th edition. *type 1 or anaphylactic or atopic reaction mediated by humoral antibodies of IgE type or reagin antibodies in response to antigen. | 155,893 | medmcqa_train |
Coronal suture completely fuses by the age of: | Actually Coronal suture completely fuses by 50-60 years, but the maximum age given in this question is 45 years and hence the answer. Age from Skull Sutures- Two halves of mandible unite at- 2 years. Metopic suture (2 halves of frontal bone) closes at: 3 years. Coronal, Sagittal, Lambdoid sutures sta to close on inner ... | 155,894 | medmcqa_train |
Position of the patient should be as described except | Bladder should be empty during a transvaginal ultrasound | 155,895 | medmcqa_train |
Mitral valve vegetations do not usually embolise to | Ref Harrison 19 th ed pg 820 Mitral valve vegetation would obviously not go to the lung, as that would involve a backward flow | 155,896 | medmcqa_train |
Most common type of veex presentation: | M.C. position of veex is Left occipito Transverse(40%) LOT > LOA M.C. malposition of veex presenting pa is Right Occiputo posterior. | 155,897 | medmcqa_train |
Cephalic index of Mongolians is | Cephalic index (Index of Breadth) is Maximum Breadth of Skull / Maximum Length of Skull. From the Cephalic index, race can be determined in 85 - 90% of cases. The skull of an Indian is Caucasian with a few Negroid characters. Type of skull Cephalic index Race Dolicocephalic (long-headed) 70-75 Pure Aryans, Aborigines, ... | 155,898 | medmcqa_train |
In nephrotic syndrome, which infection is more commoner in children: September 2010 | Ans. D: Bacterial peritonitis | 155,899 | medmcqa_train |
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