query stringlengths 1 1.57k | pos stringlengths 1 22.5k | idx int64 0 161k | task_name stringclasses 1
value |
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Which of the pathognomic feature of Alzheimer's disease? | Alzheimer's disease Coical atrophy Deposition of amyloid b plaque & tangles Cerebellar amyloid angiopathy Association with chromosome 14 and chr.1 Premature Alzheimer's - mutation in App gene (amyloid precursor protein)-on chr.21 3 copies of chr.21 -more amyloid precursor protein?premature Alzheimer's Downs syndrome pa... | 15,800 | medmcqa_train |
NADPH is used in | FATTY ACID SYNTHESIS Materials Required for the SynthesisEnzymes-Fatty acid synthase, a multienzyme complex-Acetyl-CoA carboxylase, also a multienzyme complexCoenzymes and cofactors: Biotin, NADPH, Mn++CO2: Source of CO2 is bicarbonateATP: For energyFirst reaction (reduction): The keto-acyl group is reduced to hydroxy ... | 15,801 | medmcqa_train |
The most common histopathological type of malignant melanoma of choroid is: | Ans. Mixed cell | 15,802 | medmcqa_train |
Most common type of injury to spinal cord is - | Flexion injury is the commonest spinal injury , e.g: 1.heavy blow across the shoulder by a heavy object 2.fall from height on heels / buttocks * results : in cervical spine fkexion force results in 1. A sprain of ligaments & muscles of the back of the neck . 2.compression fracture of veebral body c5- c7 .& 3. Dislocati... | 15,803 | medmcqa_train |
Which of the following drugs causes osteoporosis on long term use: | Ans. (B) Prednisolone(Ref: KDT 8/e p318)* Etidronate and phenytoin cause osteomalacia whereas calcitriol is used in treatment of osteoporosis. | 15,804 | medmcqa_train |
Anesthesia of choice for cesarean section in severe pre-eclampsia : | * Continuous Epidural Anesthesia is the first choice for patients with preeclampsia during labour, Vaginal delivery and cesarean section. * Preeclampsia patient have a risk of severe airway edema , which makes intubation difficult * Continuous Epidural Anesthesia can improve uteroplacental perfusion and also decrease c... | 15,805 | medmcqa_train |
The internal rotation in mentoposterior position is : | 3/8th of circle | 15,806 | medmcqa_train |
A study was conducted on two different samples for comparing variation between DBP and Vitamin D. Diastolic blood pressure normal is 110 with standard deviation 11 and vitamin D levels normal 18 with standard deviation 3. Which of the sample has more variable? | Ans. (b) Vitamin D is more than DBPRef: Parks Text book of Preventive and Social Medicine 24th Ed; Page No-886* Coefficient of variation (CV)=MeanSD x100* Standard Deviation (SD):# It is denoted by the Greek word sigma.# It gives us an idea of "spread" of dispersion.# Standard deviation =Variance * Coefficient of varia... | 15,807 | medmcqa_train |
Underwater autopsy of the heart is done in? | ANSWER: (A) Air embolismREF: Official gazette of the Council of Europe by Council of Europe Page 6Indirect repeat in December 2010Indirect repeat in December 2010If there is suspicion of air embolism, pre-autopsy radiology ofthorax must be performed. The first stage of autopsy in such cases is careful partial opening o... | 15,808 | medmcqa_train |
What is the use of boxing an impression? | BOXING WAX AND BEADING WAX
USES
Used to build up vertical walls around the impression, in order to pour the stone and make a cast. The procedure is known as boxing.
SUPPLIED AS
Boxing wax as sheets, beading wax as strips.
ADVANTAGES OF BEADING AND BOXING
Preserves the extensions and landmarks.
Controls the thick... | 15,809 | medmcqa_train |
N-acetyl-cysteine is antidote for: September 2012 | Ans. B i.e. Acetaminophen Acetylcysteine It is a derivative of cysteine; an acetyl group is attached to the nitrogen atom. This compound is sold as a dietary supplement commonly claiming antioxidant and liver protecting effects. It is used as a cough medicine because it breaks disulfide bonds in mucus and liquefies it,... | 15,810 | medmcqa_train |
Drug of choice for herpes simplex viral infections is:- | Acyclovir is the drug of choice for herpes simplex viral infections. Viral infection Drug of choice Herpes simplex Acyclovir Herpes zoster Valacyclovir CMV Ganciclovir Influenza Oseltamivir RSV Ribavirin Hepatitis B Tenofovir Hepatitis C Combination of oral drugs* HIV Tenofovir + Lamivudine + Eirenz *HCV protease inhib... | 15,811 | medmcqa_train |
'Nodding face sign' is seen in | Hinge/Transverse fracture: Transverse fracture of the base of the skull occurs on middle that completely splits it into two halves, creating hinge (nodding face sign) .This may result from an impact on either side of head or side to side compression of head as in run over by vehicle. Ref: FORENSIC MEDICINE AND TOXICOLO... | 15,812 | medmcqa_train |
Clinical features of complicated cataract are all, EXCEPT | C i.e. Opacity along sutures Complicated Cataract It may be posterior coical (in pathology of posterior segment) or anterior coical (in pathology of anterior segment) Opacity usually commence in posterior coex and spread axially Q Bread crumbs appearance Q Polychromatic lusture Q Vision is much impaired even in early s... | 15,813 | medmcqa_train |
Setting time of MTA is: | Mineral trioxide aggregate (MTA) was developed by Dr Torabinejad.
Setting time is 2 hours and 45 minutes.
Ref : Textbook of endodontics, Nisha Garg and Amit Garg, 3rd edition, pg no:551 | 15,814 | medmcqa_train |
Serotonin is secreted by: | Serotonin is a vasoconstricting hormone, produced in the brain and GI tract. In the GI tract it is produced normally by enterochromaffin cells (argentaffin cells). The principal function is to regulate smooth muscle contraction and peristalsis. Serotonin: also called 5-hydroxytryptamine, is a chemical substance that is... | 15,815 | medmcqa_train |
A patient, Tina was anesthetized with halothane and nitrous oxide and tubocurarine was used for skeletal muscle relaxation. She became hypeensive along with marked muscle rigidity and hypehermia. Lab repos showed that she has developed hyperkalemia and acidosis. This complication was caused by: | (Ref: KDT 6/e p347, 372) The symptoms of the patient (muscle rigidity, hypeension, hypehermia, hyperkalemia and acidosis) suggests the diagnosis of malignant hypehermia. Halothane can precipitate malignant hypehermia is susceptible individuals. SCh increases this incidence. Malignant hypehermia is due to excessive rele... | 15,816 | medmcqa_train |
Which of the following muscle do not take part in formation of perineal body? | Muscles forming perineal body
Bulbospongiosus
Levator Ani
Superficial transverse perineal muscle
Deep transverse perineal muscle
External anal sphincter
Longitudinal muscle of Anal canal | 15,817 | medmcqa_train |
Thyroglosal cyst may occasionally give rise to .....carcinoma ? | Ans. is 'a' i.e. Papillary | 15,818 | medmcqa_train |
Custom is defined as - | Ans. is 'a' i.e., Established pattern of behavior | 15,819 | medmcqa_train |
Which cereal is not to be given in celiac sprue? | Ans. (a) WheatRef.: Harrison 19th ed. /1940* Coeliac disease is caused by a reaction to gliadin found in wheat, oats, rye and Barley. Upon exposure to gliadin, there is production of anti-tissue transglutaminase antibody which cross-reacts with small-bowel tissue, causing an inflammatory reaction.* This leads to villou... | 15,820 | medmcqa_train |
A 25-year-old man is admitted to the emergency department with a bullet wound in the neck just above the middle of the right clavicle and first rib. Radiographic examination reveals collapse of the right lung and a tension pneumothorax. Injury to which of the following respiratory structures resulted in the pneumothora... | The parietal pleura can be divided regionally into costal, diaphragmatic, mediastinal, and cervical portions, depending upon local topographic relations. Another name for the cervical pleura is the cupula. This forms the dome of the plura, projecting into the neck above the first rib and corresponding to the area of in... | 15,821 | medmcqa_train |
All of the following are the reasons for pain in Sub-Mucosal fibroid, EXCEPT ? | Pain due to torsion is see with pedunculated subserosal fibroid Torsion is not characteristic of a Sub Mucosalfibroid Pain in sub mucosal fibroid is due to: Fibroid degeneration Large size Sarcomatous change | 15,822 | medmcqa_train |
Indications of splenectomy are all except: March 2008 | Ans. C: Polycythemia Indications for splenectomy? Trauma - Commonest organ injured in blunt abdominal trauma - Associated with lower rib fractures - 25% injuries are iatrogenic - Delayed rupture of splenic haematoma Spontaneous rupture - Usually seen in those with massive splenomegaly (e.g. infectious mononucleosis) - ... | 15,823 | medmcqa_train |
Calculus cholecystitis Is associated with all of the following except | Risk factors for calculous cholecystitis mirror those for cholelithiasis and include the following: Female sex Ceain ethnic groups Obesity or rapid weight loss Drugs (especially hormonal therapy in women) Pregnancy Increasing age Ref: Sabiston 20th edition Pgno :1492 | 15,824 | medmcqa_train |
The most serious complication of clomiphene citrate therapy in ovulation induction is : | Ovarian Hyperstimulation syndrome It is an iatrogenic complication of ovulation induction with exogenous gonadotropins and clomiphene-induced cycles Charecteristic feature of OHSS is an increase in capillary permeability resulting in fluid shift from intravascular to extravascular spaces Mechanism of Action Probably me... | 15,825 | medmcqa_train |
A newborn baby has not passed meconium for 48 hours since bih. She has vomiting and distension of abdomen. The most appropriate investigation for evaluation would be | C i.e. Lower GI contrast study Lower GI contrast study confirms the diagnosis & indicate the type of involvement, in cases of lower intestinal obstruction causing failure to pass meconium timelyQ. | 15,826 | medmcqa_train |
Protein synthesis occurs in: | Ans. (b) Endoplasmic reticulumRef: Harper s Biochemistry 30,h ed. pg. 576-77* The surface of the rough endoplasmic reticulum is studded with protein-manufacturing ribosomes giving it a "rough" appearance.* The ribosomes bound to ER are not a stable part of this organelle's structure as they are constantly being bound a... | 15,827 | medmcqa_train |
Parasympathetic nerve supply to parotid salivary gland is by? | The parotid gland receives parasympathetic secretomotor innervation from preganglionic fibers that arise in the inferior salivatory nucleus. They travel in the lesser petrosal branch of the glossopharyngeal nerve. The lesser petrosal nerve exits the middle cranial fossa through the foramen ovale, where the preganglioni... | 15,828 | medmcqa_train |
Thioacetazone has cross resistance with ? | Ans. is'c'i.e., Ethionamide(Ref; Essentials in tuberculosis P. 468)Thioacetazone has cross-resistance with ethionamide/prothionamide."A cross resistance between ethionamide and thiacetazone is repoed.Perchlozone also shows cross resistance with thiacetazone. | 15,829 | medmcqa_train |
Most sensitive and specific test to diagnose iron deficiency anemia is: | Serum ferritin levels is the most sensitive and specific test to diagnose iron deficiency anemia Under steady-state conditions, the serum ferritin level correlates with total body iron stores; thus, the serum ferritin level is the most convenient laboratory test to estimate iron stores. The normal value for ferritin va... | 15,830 | medmcqa_train |
Small round cell tumors are all EXCEPT: | Synol carcinoma REF: Khan, Javed, Nature Genetics 27, 64 (2001), http://en.wikipedia.org/wiki/Small-,_round,_ bluecell_tumour, Histopathology: Volume 53, Issue 1, pages 73-80 Small, round, blue-cell tumor: In histopathology, a small, round, blue-cell tumor (abbreted SRBCT), also known as a smallblue-round-cell tumor (S... | 15,831 | medmcqa_train |
Integrin connects actin to which macromolecule in ECM: | CAMs bind to laminins, a family of large cross-shaped molecules with multiple receptor domains in the extracellular matrix. Laminin is a high molecular weight ECM protein. Many CAMs pass through the cell membrane and are anchored to the cytoskeleton inside the cell. Some bind to like molecules on other cells (homophili... | 15,832 | medmcqa_train |
Devi,a 28 yr female,has diarrhoea, confusion, high grade fever with bilateral pneumonitis.the diagnosis is | Pneumonia in association with clinical clues in the form of high grade fever, confusion, and diarrhoea suggests a diagnosis of legionnaire's pneumonia Ref Harrison 19th edition pg 1016 | 15,833 | medmcqa_train |
Esophagus starts at which level - | At the lower end of pharynx, at the level of lower border of cricoid cartilage, esophagus begins. | 15,834 | medmcqa_train |
Boot shaped Hea on chest radiograph is seen in | Boot shaped Hea - Tetralogy of fallot Egg on side - TGA Snowman appearence / figure of eight - TAPVC Box shaped hea - Ebsteins anomaly | 15,835 | medmcqa_train |
Regarding Lichen planus all are true except – | Lesions of Lichen planus heal by leaving behind hyperpigmentation (not hypopigmentation). | 15,836 | medmcqa_train |
Vagabond&;s disease is also known as | pediculosis corporals/body louse: causative organism: pediculus humanus var corporis. Body lice live in clothing and beds and feed on human blood seen in poor and in those of low intelligence infection is transmitted by clothes and beds. clinical features: itching, erythematous macules, uicaria wheals, excoriated papul... | 15,837 | medmcqa_train |
Column-A Column-B 1. Tetralogy of Fallot(TOF) a. Egg on side 2. Transpoion of Great Aeries(TGA) b. Snow man appearance 3. Total anomalous pulmonary venous connection(TAPVC) c. Boot shaped hea 4. Ebstein anomaly d. Money bag appearance. e. Box shaped hea | Tetralogy of Fallot: Features of TOF: Pulmonary stenosis Overriding aoa Membranous VSD RVH "Boot shaped of hea" on X-Ray TGA: Transpoion of Great Aeries: Narrow mediastinum Globular hea "Egg on string" / "Egg on side " appearance on X-ray Ebstein anomaly: Has low inseion of tricuspid valve causing aerializatio of Rt ve... | 15,838 | medmcqa_train |
This social milestone is established by age of ___________ | Babies establish a smile on social contact by 2 months. Also done at 2 months Head sustained in a plane of the body on ventral suspension Follows moving object by 180 degrees Smiles on social contact Listen to voices and coos Ref : Nelson 20th edition pg no : 67 | 15,839 | medmcqa_train |
Number of ATP molecules and NADH formed in each cycle of glycolysis ? | Ans. is 'a' i.e., 4 ATP, 2 NADH Enegetics of glvcolysis During glycolysis 2 ATP are utilized and 4 ATP are produced at substrate level. 2 reducing equalents NADH' are produced and reoxidized by electron transpo chain, to generata 5 ATP molecules (2.5 ATP per NADH' molecule). Thus total 9 ATP molecules are produced and ... | 15,840 | medmcqa_train |
All are used for schizophrenia except - | Ans. is 'd' i.e., Venalafaxin Drugs used for schizophreniaTypical antipsychotics Phenothiazines (chlorpromazine, thioridazine, trifluperazine, fluphenazine); thioxanthenes (thiothixene, flupenthixole); Butyrophenones (Haloperidol, trifluperidol, penfluridol); other heterocyclics (Pimozide, Loxapine, Sulpiride).Atypical... | 15,841 | medmcqa_train |
Oral rehydration therapy takes advantage of which transporter in GIT - | Ans. is 'a' i.e., Na Glucose co transport * Oral rehydration is possible if glucose is added with salt. It capitalizes on the intactness of glucose coupled Na+ absorption (Na glucose co transport), even when other mechanisms have failed or when intestinal secretion is excessive, because the secreted fluid lacks glucose... | 15,842 | medmcqa_train |
Artery behind medial malleolus is - | Ans. is 'a' i.e., Posterior tibial artery Posterior tibial arteryo It begins at the lower border of popliteus muscle and terminates in the tarsal tunnel undercover of flexor retinaculumo It gives of following branches :i) Circumflex fibularii) Nutrient artery to tibia (largest nutrient artery of body)iii) Peroneal arte... | 15,843 | medmcqa_train |
Indication of BAHA is | Indications of BAHA (Bone anchored hearing aids):1.Conductive or mixed hearing loss due to CSOM, mastoid cavities, canal atresia, revision ossiculoplasty, otosclerosis, otitis externa2.Unilateral SNHL - Trauma, Viral infections, Sudden SNHL, Acoustic neuroma, Meniere`s disease, OtotoxicityRef: Hazarika; 3rd ed; Pg 85 | 15,844 | medmcqa_train |
A patient of Schizophrenia on neurolepts, his psychotic symptoms gets relieved but developed sadness, talks less to others, remain on bed, all of following are likely causes except: | D i.e. He is reacting to external stimuli Post psychotic depressive disorder of schizophreniaQ occurs only during residual phase of schizophrenia in 25% Differential diagnosis of post psychotic depressive disorder of schizophrenia are - Residual phase (negative symptoms) of schizophreniaQ - Adverse effects (eg. parkins... | 15,845 | medmcqa_train |
Which of the following is a long acting insulin that never attains a peak concentration in plasma? | (Ref: Katzung 14th ed. P 755)Insulin glargine is a soluble, "peakless" (i.e. having broad concentration plateau), long acting insulin analogue.Onset: 1-1.5 hours. Duration of action: 11-24 hours.Summary of bioavailability characteristics of the insulinsInsulin preparationsOnset of actionPeak actionEffective durationIns... | 15,846 | medmcqa_train |
A child presents to the emergency depament with fever and mild respiratory distress. He was staed on oral antibiotics and showed initial improvement, but later deteriorated again with fever, wheeze and exaggerated breathlessness. Radiographs of chest showed hyperluscency and Pulmonary Function Tests showed an obstructi... | The patient in question is presenting with features of bronchiolitis obliterans. Bronchiolitis obliterans is a small airway disease that is histologically charecterised by proliferation of fibrous tissue in the bronchiolar walls. It produce irreversible airway obstruction. Clinical features: wax and wane in between. Mo... | 15,847 | medmcqa_train |
A 68-year-old woman has been diagnosed with a benign ulcer on the greater curvature of her stomach, 5 cm proximal to the antrum. After 3 months of standard medical therapy, she continues to have guaiac positive stool, anemia, and abdominal pain with failure of the ulcer to heal. Biopsies of the gastric ulcer have not i... | Vagotomy with a gastric drainage procedure is less satisfactory in the treatment of primary gastric ulcer. Treatment of a gastric ulcer may include Paial gastrectomy with a gastro-duodenal anastomosis (Billroth I). Vagotomy is not necessary because gastric ulcers are usually not associated with acid hypersecretion. A g... | 15,848 | medmcqa_train |
High false positive cases in a community signify that disease has- | <p>the term "false positive "means that patients who do not have the disease are told that they have the disease.in this case,normal healthy people may be subjected to fuher diagnostic tests,at some inconvenience,discomfo,anxiety and expense untill their freedom from disease is established .a screening test with a high... | 15,849 | medmcqa_train |
Terminal branch of internal carotid aery are all except | Internal carotid beginning, course and termination it is a terminal branch of common carotid aery. It first runs through the neck ( cervical pa) then passes through the petrous bone ( petrous pa) then courses through the sinus ( cavernous pa) and lastly lies in relation to the brain ( cerebral pa). Area of distribution... | 15,850 | medmcqa_train |
Corpus deliciti stands for - | Ans. is 'b' i.e., Body of offence The Corpus Delicti: (the body of offencet the essence of crime)o It stands for the facts of any criminal offence.o Eg : corpus delicti of murder is the fact that the person died from unlawful violence.o It includes the body of the victim and the other facts which are conclusive of deat... | 15,851 | medmcqa_train |
What should be the internal diameter of the endotracheal tube in a child weighing 1500 gm ? | Body weight in grams and internal diameter of ET tube :-
< 1000 gm = 2.5 mm, 1000-2000 gm = 3 mm, 2000-3000 = 3.5 mm, > 3000 = 3.5-4.0 mm. | 15,852 | medmcqa_train |
Pulmonary embolism is most commonly produced by which of the following | When venous thrombi are dislodged from their site of formation,they embolize to the pulmonary aerial circulation producing pulmonary embolism.About one-half of patients with pelvic vein thrombosis develop pulmonary embolism.Other causes of pulmonary embolism include hip/knee surgery,trauma,pregnancy,immobility,thrombot... | 15,853 | medmcqa_train |
In tuberculosis of scrotal contents, first to get affected is? | Ans. (b) EpididymisRef: Smith urology page 219, Textbook of Pathology By V. Krishna / 347 | 15,854 | medmcqa_train |
Osteogenesis imperfecta is due to defect in? | Osteogenesis imperfecta is due to qualitatively or quantitatively abnormal type I collagen. | 15,855 | medmcqa_train |
Significance of difference between two proportions is best studied by: | Ans: B (Chi square test) Ref: Textbook of Preventive and Social Medicine, K Park,20th edition, page no:755.Explanation:CHI-SQUARE TESTChi-square (x2) Test is the best method for testing the significance of difference between two proportions.It has the advantage that it can also be used when more than two groups are to ... | 15,856 | medmcqa_train |
Lobe of civilization | (A) Frontal lobe | 15,857 | medmcqa_train |
Nitrates are not used in | Renal colic The main pharmacological action of Nitrates Nitroglycerine relaxes all types of smooth muscle irrespective of the state of the preexisting muscle tone. The most prominent action is exeed on the vascular smooth muscle. - Apa .from vascular smooth muscle nitrates also cause relaxation of the smooth muscles of... | 15,858 | medmcqa_train |
Drug of choice of ovulation induction in PCOD patients | Clomiphene citrate is drug of choice for ovulation induction in PCOD patients. | 15,859 | medmcqa_train |
Most common drug causing peudomembranous enterocolitis is | C.difficile causes acute colitis with bloody and watery diarrhea and pseudomembranous colitis. C.difficle is the most common cause of healthcare-associated diarrhea in many developed countries following the use of broad-spectrum antibiotics like clindamycin, ampicillin, or fluoroquinolones to which the organism is resi... | 15,860 | medmcqa_train |
Which one of the folloiwng hormonal level is decreased after Intracranial irradiation? | (C) Growth hormone # Endocrine dysfunction frequently follows exposure of the hypothalamus or pituitary gland to therapeutic radiation. Growth hormone is the pituitary hormone most sensitive to radiation therapy, and thyroid- stimulating hormone is the least sensitive; ACTH, prolactin, and the gonadotropins have an int... | 15,861 | medmcqa_train |
Thermo philus sachari causes ? | Ans. is 'a' i.e., Bagassosis Bagassosiso Bagassosis is the name given to an occupational disease of the lung caused by inhalation of bagasse or sugar- cane dust.o Bagassosis has been shown to be due to a termophilic actinomycete - Thermoactinomyces sacchari.Anthracosis-Coal dustSilicosis-SilicaSiderosis-ironByssinosis-... | 15,862 | medmcqa_train |
True about hypospadias is all except - | Answer is 'c' i.e. Mental Retardation Meatal stenosis may be associated with hypospadias and needs meatotomy for correction.Bifid scrotum may be seen in penoscrotal, scrotal & perinea! hypospadias. | 15,863 | medmcqa_train |
Loss of feel of size & shape of a object is seen in lesion ofa) Tractus solitariusb) Tractus cuneatusc) Lateral spinothalamic tract d) Cerebral cortex | Astereognosis- Loss of ability to recognize size and shape of an object.
Seen in- lesion of somatosensory cortex, lesion of tractus cuneatus, lesion of tractus gracilis.
Somatosensory cortex lesion- proprioception and tactile sensations are lost while pain and temperature sensations are preserved.
Tractus cuneatus- fo... | 15,864 | medmcqa_train |
Lupus pernio is seen in | Ref Davidsons 23e p609 | 15,865 | medmcqa_train |
Intermediate hosts for toxoplasma are all except? | Ans. is 'c' i.e., Cat | 15,866 | medmcqa_train |
First disability census was done in the year? | First disability census was taken in 1981 | 15,867 | medmcqa_train |
Amyloidosis is most commonly seen in ? | Ans. is 'c' i.e., Type II DMo The two best examples of localized amyloidosis are Alzheimer's disease and type 2 diabetes mellitus.o Localized amyloid deposition results from the production of a unique polypeptide, which contains an amyloidogenicsequence and is capable of forming a beta-pleated sheet structure necessary... | 15,868 | medmcqa_train |
What is the delay between the S-A node discharge and arrival of the action potential at the ventricular septum? | The impulse coming from the S-A node to the A-V node arrives at 0.03 second. Then there is a total delay of 0.13 second in the A-V node and bundle system, allowing the impulse to arrive at the ventricular septum at 0.16 second | 15,869 | medmcqa_train |
Which of the is not a channelopathy - | Ans. is 'c' i.e., Tay-Sach's disease Ion channels provide pores for the passive diffusion of ions across biological membranes.They are often highly selective for a particular ionic species, leading to a classification into sodium (Na+), potassium (K+), calcium (Ca2+), chloride (Cl)and unspecific cation channels. Ion ch... | 15,870 | medmcqa_train |
Which of the following statement is true regarding opening snap? | The high-pitched opening snap (OS) of MS occurs after a very sho interval after the second hea sound. The A2-OS interval is inversely propoional to the height of the left atrial-left ventricular diastolic pressure gradient. The intensity of both S1 and the OS of MS decreases with progressive calcification and rigidity ... | 15,871 | medmcqa_train |
Most common variety of diphtheria is: | Ans: c (Faucial) Ref: Ananthanarayan, 7th ed, p. 234Types of diphtheria are: NasalLaryngealFaucialOtiticConjunctivalGenitalCutaneousMost common variety is faucialMost dangerous variety is laryngeal | 15,872 | medmcqa_train |
All of the following are pyrogenic cytokines, except: | Interleukin 18 is not a pyrogenic cytokine. IL-18, a member of the Il-1 family doesnot appear to be a pyrogenic cytokine- harrison. Pyrogenic Cytokines: Cytokines are small protein that regulate immune, inflammatory and hematopoietic processes Those cytokines that cause fever &;are called as pyrogenic cytokines (former... | 15,873 | medmcqa_train |
40-year old female presented with neck swelling. Gross and histology is shown below. What is your diagnosis? | Ref. Robbins Pathology. 9th edition. Page. 1099
Medullary carcinoma thyroid
Gross
Single or multiple
Typically nonencapsulated
Solid, gray / tan / yellow, firm, may be infiltrative
Microscopy
Round, polygonal or spindle cells in nests, cords or follicles, defined by sharply outlined fibrous bands
Tumor cells have gr... | 15,874 | medmcqa_train |
Following statement regarding dislocation of the shoulder are true except : | Anterior dislocation is more common in which head of humerus dislocates forward from the glenoid cavity.
Anterior dislocation is produced by forced abduction, external rotation and extension of the arm.
The features of posterior dislocation of the shoulder are not very striking, and for that reason the injury is often ... | 15,875 | medmcqa_train |
The active search for unrecognized disease or defect in apparently health people using rapidly applied tests or procedures is - | Screening is the search for unrecognized disease by means of rapidly applied tests or examinations in apprently healthy individuals. | 15,876 | medmcqa_train |
Fir tree pattern lesion is seen in | Fir tree pattern of distribution of lesions is characteristic of pityriasis rosea also called Christmas tree pattern. This typical pattern occur due to long axis of lesions developing along the tension lines running parallel to ribs on the trunk. Psoriasis lesions are distributed over the extensor aspects of body pityr... | 15,877 | medmcqa_train |
Which of the following can be used for dentinal hypersensitivity? | In a clinical study using the primer of the original Gluma adhesive system, an aqueous solution of 5% glutaraldehyde and 35% HEMA, currently marketed as Gluma Desensitizer; the desensitizing solution was applied to crown preparations. The authors concluded that Gluma primer reduced dentin sensitivity through a protein ... | 15,878 | medmcqa_train |
True about rigor mortis -a) First appear in chinb) It last 18-36 hours in summerc) Seen immediately after deathd) It disappears in the sequence as it appearse) It last 24-48 hours in winter | Rigor mortis first appears in eyelid (among voluntary muscles).
It lasts 18-36 hours in summer and 24-48 hours in winter.
It starts 1-2 hours after death.
It disappears in same order in which it has appeared. | 15,879 | medmcqa_train |
All of the following cause increased ESR except | Sickle cell anemia - ↓ ESR. | 15,880 | medmcqa_train |
In sickle cell anemia all are true except: | Ans. (d) Ringed sideroblast(Ref: Robbins 9th/pg 635-636)Ring sideroblasts are not seen in sickle cell anemia, but in Sideroblastic AnemiaPeripheral smear finding in sickle cell anemia:Ansiopoikilocytosis, polychromasia, Increased Retie %Irreversibly sickle RBCs and target cells (increased after autosplenectomy).Howell-... | 15,881 | medmcqa_train |
All are true regarding hallucinations, except: AIIMS 09 | Ans. Under voluntary control | 15,882 | medmcqa_train |
Corduroy appearance on X-ray is seen in? | Corduroy cloth appearance/ jail bar sign (veical striations in veebrae)-Hemangioma Hemangioma result of the replacement of normal cancellous by thickened veical trabeculae surrounded by fat marrow or vascular lacunae in veical intraosseous hemangiomas. It is a benign tumor and consists of vascular channels. It is seen ... | 15,883 | medmcqa_train |
Which morphological type of cataract is most visually handicapping | Posterior subcapsular cataract is near the nodal point of the eye and hence decreases the vision mostly | 15,884 | medmcqa_train |
Separation of rods and cones due to exudative choroiditis causes: | Ans. Micropsia | 15,885 | medmcqa_train |
Cognisable offense comes under which section of Cr.P.C. - | (S.2 (c), Cr.P.C.)It is an offence in which a police officer can arrest a person without warrant from the Magistrate.eg:rape, murder, dowry death, rash or negligent act etc. Ref:The Symopsis of Forensic medicine& Toxicology (Dr.K.S.Narayan Reddy) pg no-5,28th edition. | 15,886 | medmcqa_train |
A child few hours after ingestion of a fruit, vomiting started later developed convulsion. In the hospital his blood glucose was very low, but no ketone bodies. The fruit he ingested was identified as a fruit found in Africa. What is the diagnosis? | Ans. D. Jamaican vomiting sickness* The fruit given in picture is Ackee apple fruit seen in Africa.* The fruit contains a toxin hypoglycin that inhibit acyl-CoA dehydrogenase.* Lack of beta oxidation results in lack of ATP and acetyl-Co A, which decreases gluconeogenesis.* This result in hypoglycaemia.* No ketone bodie... | 15,887 | medmcqa_train |
Cephalic index helps in identification of the following feature: | Cephalic index (C.I.) or Index of Breadth is used for determination of race. C.I. = Maximum breadth of skull/Maximum length of skull 100 Three types are seen, Caucasian, Mongolian, and Negro. The skull of an Indian is Caucasian with a few Negroid characters. Racial difference in the skull: Type of skull Cephalic index ... | 15,888 | medmcqa_train |
Complication which commonly accompanies acute prostatitis: | ACUTE BACTERIAL PROSTATITIS MC organism- E.coli Catheterization and prostatic massage is contraindicated. MC used antibiotics are: TMP-SMX and Ciprofloxacin (Both are having better concentration in Prostatic tissue) Complication which commonly accompanies acute prostatis is Seminal vesiculitis. | 15,889 | medmcqa_train |
Radiotherapy works by | Radiation therapy works by damaging the genetic material within cancer cells and limiting their ability to successfully reproduce. When these damaged cancer cells die, the body naturally eliminates them.Radiation therapy is based on the principle that ionizing radiation kills proliferating cells(Refer: Thayalan's Basic... | 15,890 | medmcqa_train |
Lung cancer most commonly associated with smoking ? | Ans. is 'c' i.e., Squamous cell carcinoma * Adenocarcinoma is the most common type of lung carcinoma in non-smokers and females.Remember* Adenocarcinoma is the overall most common type of lung carcinoma.* Adenocarcinoma is the most common type of lung carcinoma in non-smokers and females.* Squamous cell (epidermoid) ca... | 15,891 | medmcqa_train |
Magistrate inquest is done in case of - | MAGISTRATE INQUEST: Is done in death in police custody death in police firing death in the police investigation dowry death death in a psychiatric hospital exhumation rape REF: The Synopsis of Forensic Medicine and Toxicology 29th edition page no: 3. | 15,892 | medmcqa_train |
Creola bodies are seen in - | Ans. is 'a' i.e., Bronchial asthma o Creola bodies are a histopathologic finding indicative of bronchial asthma.o Found in a patient's sputum, they are ciliated columnar cells sloughed from the bronchial mucosa of a patient with asthma.o Other common findings in the sputum of asthma patients include.Charcot-Leyden crys... | 15,893 | medmcqa_train |
How long does apnoea in premature infants lasts for? | Apnea is defined as cessation of respiration for 20 seconds with or without bradycardia and cyanosis or for shoer periods if it is associated with cyanosis or bradycardia. It is usually seen in preterm neonates. Apnea could be of three types central, obstructive or mixed type: Central apnea is characterized by the abse... | 15,894 | medmcqa_train |
Which is the best test for diagnosis of adrenal insufficiency? | The diagnosis of Primary Adrenal Insufficiency is established by Cosyntropin test Coisol values of <18ug/dl sampled 30-60 minutes after ACTH stimulation will diagnose the disease. This is followed by plasma ACTH values to identify primary versus secondary Addison disease. Steroid auto-antibodies are marker for Autoimmu... | 15,895 | medmcqa_train |
All are true about obstetric cholestasis except: | Pruritus is worse at night in obstetric Cholestasis This disorder also has been referred to as recurrent jaundice of pregnancy, Cholestatic hepatosis, and icterus gravidarum. It is characterized clincally by pruritus, icterus or both. It may be more common in multifetal pregnancy. There is significant genetic influence... | 15,896 | medmcqa_train |
Process of mixing waste with cement before disposal is known as - | Ans. is 'a' i.e., Inertization * The process of inertization involves mixing waste with cement and water substances before disposal to minimize the risk of toxic substances contained in the waste migrating into surface water or groundwater. It is especially suitable for pharmaceuticals and for incineration ashes with a... | 15,897 | medmcqa_train |
True about Galvanic Skin Response | The Galvanic Skin Response (GSR), also named Electrodermal Activity and Skin Conductance , is the measure of the continuous variations in the electrical characteristics of the skin, i.e. for instance the conductance, caused by the variation of the human body sweat glands. Ref guyton and hall textbook of medical physiol... | 15,898 | medmcqa_train |
Apixaban is classified as | Apixaban is an oral, direct, selective factor Xa inhibitor with a rapid onset of action. Parenteral direct thrombin Inhibitors Oral direct thrombin inhibitor Oral factor Xa inhibitor Lepirudin Desirudin Argatroban Bivalirudin Dabigatran Rivaroxaban Apixaban Edoxaban (Undergoing regulatory review) Ref: Goodman and Gilma... | 15,899 | medmcqa_train |
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