query stringlengths 1 1.57k | pos stringlengths 1 22.5k | idx int64 0 161k | task_name stringclasses 1
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All are true about secretion except: | D i.e. Tses bile salt & bile acids | 11,200 | medmcqa_train |
Turban epiglottis is seen in ? | Ans. is 'a' i.e., TB Tubercular larvn_gitis Tubercular laryngitis is almost always secondary to pulmonary lesions, mostly affecting males in middle age (20-40 years). Disease affects the posterior third of larynx more commonly than anterior pa.The pas affected in descending order of frequency are :- i) Interarytenoid f... | 11,201 | medmcqa_train |
The rate of cooling down of dead bodies in tropical climate is - | Rate of cooling of dead body in tropical countries (India) is 0.5- 0.7°C/hours.
In temperate climate, it is about 1.5°C/hours | 11,202 | medmcqa_train |
A q from a tribal area of jharkhand repos with fever for last 3days Peripheral blood is collected and stained with Giemsa A diagnosisof malaria is made The smear is shown in the fig What is the likely cause | REF : ANANTHANARYANA MICROBIOLOGY | 11,203 | medmcqa_train |
Tom-smith arthritis results from | (Septic arthritis) (39- Apley'8th)* Septic Arthritis in Infancy (TOM-SMITH-ARTHRITS)* The head of the femur is cartilaginous and is rapidly and completely destroyed by pyogenic process* Affected leg is shorter and hip movements are increased in all directions* Telescopy test is positive* X-ray complete absence of the h... | 11,204 | medmcqa_train |
Most common cause of fracture of roof of orbit | "Orbital roof fracture should be suspected in any child presenting with blunt injury to the brow or forehead with subsequent development of a hematoma of the upper lid in the hours following injury ". — Pediatric ophthalmology | 11,205 | medmcqa_train |
Which is not a neuronal tumour | The four major classes of brain tumors are: 1. Gliomas Astrocytoma * Pleomorphic xanthoastrocytoma * Brainstem glioma * Pilocytic astrocytoma * Fibrillary (diffuse) astrocytomas * Glioblastoma * Oligodendroglioma * Ependymoma 2. Neuronal tumors * Ganglion cell tumors * Gangliocytoma * Ganglioglioma * Dysembryoplastic n... | 11,206 | medmcqa_train |
Most common immediate complication of splenctomy: | When splenectomy is performed, we are prone to injure the tail of pancreas, there is a high chance of Acute pancreatitis to occur or a duct maybecut leading to fistula. Sometimes, the blood may be collected below the diaphragm which may lead to sub-diaphragmatic abscess. Since, the spleen is in relation to the left dom... | 11,207 | medmcqa_train |
All of the following are excitatory neurotransmitters except | GABA is the major inhibitory mediator in the brain, including being responsible for presynaptic inhibition. GABA, which exists as b-aminobutyrate in the body fluidsReference: Ganong review of medical physiology 23rd edition Page no; 141 | 11,208 | medmcqa_train |
A case of young patient presents to you with knee pain, irritability and gum bleeding. Upon x-ray of leg, cortex is significantly thin with a white line at the metaphysis. What could be possible cause: | Ans. (c) ScurvyRef: Maheshwari 5th ed. 1315Scurvy causes failure of collagen synthesis and osteoid formation. It clinically presents with:* Irritability* Gum bleeding* Pseudoparalysis (due to subperiosteal haemorrhage)* Anemia and beading of costo-chondral junction. Radiological features are: Frenkels line (dense line ... | 11,209 | medmcqa_train |
Seen in trachoma are/is: | A i.e. Papillary hyperophy; B i.e. Follicles; C i.e. Panus formation | 11,210 | medmcqa_train |
First line treatment of T315I mutation in CML management is? | T315I mutation is a mutation in the critical BCR-ABL kinase in the ATP-binding pocket This prevents imatinib binding and hence leads to resistance to imatinib, nilotinib, bosutinib, and dasatinib. Only drug effective for T315I mutation CML = Ponatinib. Otherwise DOC CML= Imatinib. DOC for Imatinib resistant CML = Bosut... | 11,211 | medmcqa_train |
Horner trantas spot is seen in? | Vernal REF: Khurana 4th ed p-451, Yanoff & Ducker-ophthalmology 2nd edition page 407 A characteristic manifestation of limbal vernal conjunctivitis is the presence of Horner-Trantas dots, which are white, chalk-like dots composed of eosinophils and epithelial debris. | 11,212 | medmcqa_train |
The blood-brain barrier is formed by | There are three types of microglia: oligodendrocytes, Schwann cells, and astrocytes. Oligodendrocytes and Schwann cells are involved in myelin formation around axons in the CNS and peripheral nervous system, respectively. Astrocytes, which are found throughout the brain, are fuher subdivided into two groups. Fibrous as... | 11,213 | medmcqa_train |
Following are the laboratory tests for the diagnosis of vestibular dysfunction except | Gelle&;s test compares the intensity of bone-conducted tuning fork sound without and with raising pressure on the tympanic membrane with Siegel&;s speculum. It&;s a test of bone conduction and examines the effect of increased air pressure in ear canal on the hearing. (Ref: Diseases of EAR, NOSE and THROAT by PL DHINGRA... | 11,214 | medmcqa_train |
Gastric acid secretion is stimulated by all except- | Ans. is 'd' i.e., Somatostatin o There are following phases of gastric acid secretion : -The cephalic phase Just as salivary secretion may start before food enters the mouth, gastric secretion is also intitiated before food enters the stomach . Sight, smell or even thought of food stimulate gastric acid secretion. It i... | 11,215 | medmcqa_train |
Suture present between parietal & occipital bones is | The lambdoid suture lies between the occipital bone and the two parietal bones. Sutural bones are common along this suture. Lambdoid sutures are usually visible clearly. The lambdoid suture traverses the posteriormost pa of the skull. Ref: BD Chaurasia's HUMAN ANATOMY, Volume 3, 4th edition. | 11,216 | medmcqa_train |
Cell volume & shape is maintained by | Gibbs-Donnan effect---there are more osmotically active paicles in the cells than the interstitial fluid. This would make them swell and eventually rupture, but prevented by operation of Na+-K+ pump which produces net movement of positive charge out of the cell and keeps the inside a.d outside of the cell in osmotic eq... | 11,217 | medmcqa_train |
The most common site of enlargement of the lymph nodes in Hodgkin's lymphoma is | In about 50% of patients who have both Hodgkin's and non-Hodgkin's lymphoma, the mediastinum may be the primary site." Ref : Schwaz 9/e p575 | 11,218 | medmcqa_train |
The posterior focal point of the reduced eye situated on the retina is how many millimetre behind the anterior surface of cornea: | Ans. 24.4 mm | 11,219 | medmcqa_train |
Microangiopathic hemolytic anaemia (MAHA) is a component of all of the following, except: | - Paroxysmal nocturnal hemoglobinuria (PNH): Results from acquired mutations in PIGA gene leading to deficiency of GPI-linked proteins in membrane of blood cells. Red cells deficient in GPI-linked factors are abnormally susceptible to lysis or injury by complement. This manifests as intravascular hemolysis, which is ca... | 11,220 | medmcqa_train |
Testicular tumour most sensitive to radiation is? | Ans. is 'd' i.e., Seminoma | 11,221 | medmcqa_train |
Lysogenic conversion is - | New propeies in the bacterium is due to integration of phage genome REF:MICROBIOLOGY ANANTHA NARAYANAN NINTH EDITION PAGE.60 | 11,222 | medmcqa_train |
All of the following are methods of health promotion except- | Ans. is 'a' i.e., Immunization o All the given options are examples of primary prevention. o Primary prevention has two main components :- i) Health promotion ii) Specific protection Mode of intervention of Primary prevention Health promotion Specific protection Health education 1. Immunization Environmental modificati... | 11,223 | medmcqa_train |
Treatment of choice in prenatal congenital adrenal hyperplasia - | Ans-B i.e., DexamethasonePrenatal treatment of congenital adrenal hyperplasia consists of maternal administration of dexamethasone which is not degraded by the placenta and crosses into the fetal circulation.The rationale for prenatal therapy is that suppression of pituitary ACTH secretion by exogenous glucocorticoid w... | 11,224 | medmcqa_train |
In patients with anterior uveitis, decrease in vision due to posterior segment involvement can occur because of – | "Cystoid macular edema is a common cause of visual loss in patients with uveitis and may be observed in the setting of severe anterior or intermediate uveitis. Long-standing or recurrent macular edema can cause permanent loss of vision due to cystoid degeneration".
- Lange Ophthalmology | 11,225 | medmcqa_train |
Which of the following amino acid is excreted in urine in maple syrup urine disease | In maple syrup urine disease there is the excretion of branched chain amino acids (isoleucine, leucine, valine) and their keto acids (α -keto β-methyl valerate, α-ketoisocaproate, α-ketoisovalerate) in the urine. | 11,226 | medmcqa_train |
Single gene defect causing multiple unrelated problems – | Pleiotropy occurs when a mutation in a single gene produces effects on more than one characteristic, that causes multiple mutant phenotypes.
In humans, this phenomenon is most obvious when mutations in single genes cause diseases with seemingly unrelated symptoms.
Some examples of this phenomenon are:
Transcription f... | 11,227 | medmcqa_train |
What does cardiac polyp means - | . Fibrinous clot | 11,228 | medmcqa_train |
Leading questions are permitted only in - | In cross-examination, the witness is questioned by the lawyer for the opposite pay. Leading questions are permissible during cross-examination. In examination-in-chief leading, questions are not allowed except in those cases, where the judge is satisfied that a witness is hostile. examination in chief and re-examinatio... | 11,229 | medmcqa_train |
Relative risk of 5 means - | Ans. is 'c' i.e., Incidence of disease is 5 times higher in exposed group * Relative risk is a direct measure of the strength of association between suspected cause and effect. For example a relative risk of 2 means that the incidence rate is 2 times higher in the exposed group as compared with unexposed - i.e., a 100%... | 11,230 | medmcqa_train |
Low glycemic index is classified as value less than: | Concept of glycemic index has utility in management of diabetes and obesity. Classification GI range Example Low GI 55 or less Most fruits and vegetables except potatoes and water melon, pasta beans, lentils Medium GI 56-69 Sucrose, brown rice, basmati rice High GI 70 or more Corn flakes, white bread, candy bar Ref: Pa... | 11,231 | medmcqa_train |
Iron deficiency is best demonstrated by: | Ans b (Se Ferritin)Ref: Davidson, 21 edpg. 1018Ferritin (n = 50 - 200 microg//)A measure of iron stores in the tissue and is the single best test to confirm iron deficiency Less than normal value of Se. ferritin is seen in:1. Iron deficiency2. Hypothyroidism3. Vitamin c deficiency Raised Se.ferritin value is seen in:1.... | 11,232 | medmcqa_train |
Taurodontism is seen in which race | TAURODONTISM - Bull tooth; in mongoloids Pulp cavity of molars is wide and deep Roots are fused and bent | 11,233 | medmcqa_train |
An investigator finds out that 5 independent factors influence the occurrence of a disease. Comparison of multiple factors that are responsible for the disease can be assessed by: | ANOVA: Analysis of variance is a parametric test used for polyotomous independent variable Chi-square test: is non-parametric test used for testing association between 2 or more qualitative variables Multiple linear regression: Is used if the target variables are dimensional having multiple possible values Multiple log... | 11,234 | medmcqa_train |
Fine voluntary movements are transmitted by | (A) Lateral corticospinal tract > The nerve fibers that pass from the motor cortex to the cranial nerve nuclei form the corticobulbar tract. The nerve fibers that cross the midline in the medullary pyramids and form the lateral corticospinal tract make up about 80% of the fibers in the corticospinal pathway.> The remai... | 11,235 | medmcqa_train |
sho acting acting beta 2 agonist | sho-acting beta2 agonists- salbutamol., terbutaline, pirbuterol long-acting- salmeterol, formoterol, clenbuterol ref kd Tripathi 8th ed | 11,236 | medmcqa_train |
EMA - CO regimen for treatment of choriocarcinoma includes all except | EMACO ⇒
Etoposide
Methotrexate
Actinomycin
Cyclophosphamide
Oncovin. | 11,237 | medmcqa_train |
The coagulation profile in a 13–year old girl with Menorrhagia having von Willebrand's disease is – | Von Willebrand's factor acts as a plasma carrier of factor VIII and circulates in the blood as factor VIII-VWF complex. Its deficiency, therefore, impairs the intrinsic pathway of coagulation and prolongs the PTT as the intrinsic pathway of coagulation remains unimpaired, PT is not altered.
i) Bleeding time
It is a n... | 11,238 | medmcqa_train |
Superior pancreaticoduodenal aery is a branch of? | Ans. is 'c' i.e., Gastroduodenal aeryGastroduodenal aery gives following branches :-Right gastroepiploic aerySuperior pancreaticoduodenal aery | 11,239 | medmcqa_train |
Echocardiography can detect pericardial effusion as little as: | Ans. | 11,240 | medmcqa_train |
SUPAR is a blood marker for | FSGS - supar.
Mbranous nephropathy - M - PLA2. | 11,241 | medmcqa_train |
What is true about adductors of thigh - | Ans. is'd'i.e., Adductor magnus is the largest muscleIschial head of adductor magnus is a hamstring muscle (not adductor).Ischial head of adductor magnus originates from inferolateral aspect of Ischial tuberosity (not from adductor tubercle).Main aery of adductor (medial) compament of thigh is obturator aery (not profu... | 11,242 | medmcqa_train |
Mycoplasma is intrinsically resistant to: | Ref. Robbins Pathology. 9th edition. Page. 1375
Mycoplasma
Smallest extracellular bacteria.
Lack a cell wall; are very flexible and able to pass through filters which are 0.4 microns and which stop most bacteria.
Contain sterols in their cell membrane; however, they cannot synthesize sterols so mycoplasmas acquire... | 11,243 | medmcqa_train |
Chronic adrenal insufficiency is characterized by all of the following except- | In contrast in Adrenal insufficiency weight loss occurs Ref - Davidson's medicine 23e p672 , ( Harrison 17 pg 2263) | 11,244 | medmcqa_train |
Provisions of free medical care to the people at government expense is known as - | State medicine. : administration and control by the national government of medical and hospital services provided to the whole population and paid for out of funds raised by taxation. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 10 | 11,245 | medmcqa_train |
Growth Hormone may be beneficial in the following, except: | Growth hormone is effective in accelerating the growth rate in children with constitutional growth delay. It increases the calcium absorption in the gastrointestinal tract and has a positive effect on osteogenesis; it may be of use in treatment of osteoporosis and non-healing fractures. In panhypopituitarism, there is ... | 11,246 | medmcqa_train |
Cephalic vein drains into - | Ans. is 'c' i.e., Axillary vein Veins of upper limbo Cephalic vein is the paraxial vein of upper limb (like great saphenous vein of lower limb). It begins from the lateral end of dorsal venous arch. It is accompanied by lateral cutaneous nerve of forearm and terminal part of radial nerve.o Basilic vein is the postaxial... | 11,247 | medmcqa_train |
In accidental hemorrhage, TOC: | Ans. is c, i.e. Simultaneous emptying of uterus and blood transfusionRef: Williams Obs 23/e. p 767: Dutta Obs. 7/e, p 257, 258; COGDT 10/e, p 333The basic principle in the management of abruptio is termination of pregnancy along with correction of hypovolemia and restoration of blood loss."With massive external bleedin... | 11,248 | medmcqa_train |
Calcium channel blocker with maximum effect on conduction in hea is: | Verapamil is phenylalkylamine which depresses the SA node and slows AV conduction. Others are less potent. But verapamil can cause constipation It is class 4 antiarrhythmic drug REF.Essentials of Pharmacology KD Tripathi 8th ed. | 11,249 | medmcqa_train |
Most probable diagnosis in a newborn baby with regurgitation of feeds and continuous drooling of saliva is: | Continuous drooling of saliva indicates no communication of Esophagus distally - esophageal atresia. Type E is also known as H shaped Fistula Least Common- Type D Classification of TEF Type A: Atresia only (6%) Type B: Atresia with proximal TEF (2%) Type C: Atresia with distal TEF (85%): Most common Type D: Atresia wit... | 11,250 | medmcqa_train |
A 68-year-old patient postoperative from thyroidectomy presents with muscle cramps; Chvostek's and Trousseau's signs are noted on examination. | Ans. (a) Prolonged QT interval.The rate is bradycardic at 54 beats/min. Ihe rhythm is regular with a narrow QRS and normal-appearing sinus P waves are seen. Axis is normal.The QT interval is very prolonged to more than 600 milliseconds with a long, isoelectric ST segment (best seen in lead V6) and T-wave inversions in ... | 11,251 | medmcqa_train |
Methyl xanthines acts on | (Adenosine receptors) (202-3-KDT) (220-KDT 6th)Mechanism of action of Methylxanthines - Three distinct cellular actions(a) Release of Ca++ from sarcoplasmic reticulum especially in skeletal and cardiac muscle.(b) Inhibition of phosphodiesterase which degrades cyclic nucleotides intracellularly.ATPorGTPAdenylcyclase----... | 11,252 | medmcqa_train |
Which one of the following is characteristic of tubercu otitis media; | Ans. (b) Multiple perforation of pars tensaRef: Dhingra's ENT 5ht ed. / 83Clinical features of Tubercular otitis media:# Painless foul smelling ear discharge: very characteristic finding.# Perforation: multiple perforations usually 2-3 on pars tensa is classical sign of disease.# Hearing loss: There is a severe hearing... | 11,253 | medmcqa_train |
True about 'Customs' is/are | (AH of the above) | 11,254 | medmcqa_train |
Smooth muscle contraction due to release of calcium, occurs because of ? | In Smooth muscles, rise in intracellular leads to binding of 4 Ca++ ions with calmodulin. Calcium-calmodulin complex then activates myosin light chain kinase (MLCK). MLCK phosphorylates the regulatory light chain of myosin; this phosphorylation then leads to interaction of myosin with actin. Calmodulin is structurally ... | 11,255 | medmcqa_train |
ZOE is not used for permanent cementation because of? | DISADVANTAGES
It does not adhere well to enamel and dentin; hence, it causes microleakage and cannot be used for interim and long-term restorations.
Due to its low strength and high solubility, it cannot be used for permanent cementation(1st choice will be low strength then low solubility if asked in exams).
Its solub... | 11,256 | medmcqa_train |
True Statement about silicosis - | Ans. is 'b' i.e., Associated with tuberculosis Silicosis 3 Silicosis is a lung disease caused by inhalation of crystalline silicon dioxide (silica). o Currently, it is the most prevalent occupational disease in the world. Silicosis is a slowly progressive disease, usually presenting after decades of exposure as slowly ... | 11,257 | medmcqa_train |
Mutations in Marfans syndrome is in: | Fibrillin | 11,258 | medmcqa_train |
The commonest type of tracheoesophageal anomaly is - | Tracheoesophageal fistula and esophageal atresia
Esophageal atresia is the most common congenital anomaly of the esophagus.
More than 90% are associated with tracheoesophageal fistula.
The most common variety is the one where upper part of esophagus ends blindly and the lower part is connected to trachea-by a fistula.... | 11,259 | medmcqa_train |
In concussion trauma, damage to ocular structures is caused by: | Ans. All of the above | 11,260 | medmcqa_train |
Etomidate causes all except- | Ans. is 'a' i.e., Coronary insufficiency o Etomidate is most cardiostable inducing agent. It can cause nausea and vomiting, decreased adrenal steroids and decrease in ICI. | 11,261 | medmcqa_train |
Cerebral palsy in which upper limb is less affected than lower limb | Ans. is 'a' i.e., Spastic diplegia | 11,262 | medmcqa_train |
A 45 yrs old man presents with progressive cervical lymph nodes enlargement, since 3 months; most diagnostic investigation is: | In cervical lymph node enlargement, if no mucosal lesion is detected, an excision biopsy of the largest node should be performed. Ref: Harrison's Internal Medicine, 15th Edition, Page 362 and 18th Edition, Page 467. | 11,263 | medmcqa_train |
Which of the following is a WRONG pair regarding features of cranial nerves: | Most common nerve involved in basal skull fracture is Facial nerve. Most common nerve involved in raised intracranial tension is Abducent nerve . Most common nerve affected during spinal anesthesia is also Abducent nerve. Most commonly involved in intracranial aneurysm is Oculomotor nerve ansd not optic nerve. An aneur... | 11,264 | medmcqa_train |
A 6 months old baby coming with /o increasing difficulty in breathing of 2 days duration and on examination baby is afebrile & B/L wheeze & CXR shows B/L hyperinflation of the lungs with normal WBC count, the diagnosis is – | Clinical manifestations of bronchiolitis
The usual course of the disease is 1-2 days of → Fever, Rhinorrhea, Cough
This is followed by -
Wheezing
Cyanosis
Tachypnea
Nasal flaring
The breathing pattern is shallow
Rales, crepitation and Ronchi
Respiratory distress → retraction of intercostal space & suprast... | 11,265 | medmcqa_train |
The half life of I133 - | Ans. is 'd' i.e. 8 days | 11,266 | medmcqa_train |
Which is the principle for management of diabetic foot? | Ans: a. (Control of DM)Ref: Cuschieri, 4th ed. pg. 783The treatment of diabetic foot should be multi disciplinary involving vascular surgeon, diabetologist, and chiropodist. The main pathophysiology of diabetic foot involves a combination of neuropathy, infection and ischaemia. The goal of management should be control ... | 11,267 | medmcqa_train |
Not a complication of total parenteral nutrition | .Biochemical COMPLICATIONS OF TOTAL PARENTERAL NUTRITON INCLUDES 1. Electrolyte imbalance: Hyponatraemia, hypokalaemia, hypophosphataemia. 2. Hyperosmolarity. 3. Hyperglycaemia. - common. 4. Dehydration. 5. Altered immunological and reticuloendothelial function. 6. Azotaemia. ref:SRB&;s manual of surgery,ed 3,pg no 89 | 11,268 | medmcqa_train |
Which drug resistance differentiates the non fermenters, Psedomonas and burkholderia? | Burkholderia can be differentiated from Pseudomonas by it's resistance to polymyxin, As polymyxin B is used for treating Psedomonas infection | 11,269 | medmcqa_train |
Fluid best for postmortem investigation? | Ans. b (Vitreous) (Ref. Reddy FMT 23rd/pg. 332).There is a linear relationship between potassium concentration in vitreous and time after death up to 120 hours.Also Know:* The component of vitreous humour that is most useful in determining time since deathPotassium* Mucopolysacchride maximally present in vitreous humou... | 11,270 | medmcqa_train |
All are false about tigecycline, except: | Ans. d. Not preferred in UTIRef: Goodman Gilman 12th e/P 1523Tigecycline, doxycycline and minocycline are safe in renal failure.Tigecycline is active against gram negatives with the exception of pseudomonas, providencia, morganella and proteus.Tigecycline has poor bioavailability and hence is given only by parenteral r... | 11,271 | medmcqa_train |
Misoprostol is a: | Natural prostaglandin in the body is PGE2 whereas misoprostol and alprostadil are synthetic PGs which are PGE1 analogues. | 11,272 | medmcqa_train |
The mechanism responsible for sustained vascular smooth muscle contraction is | Latch bridge mechanism: - Once smooth muscle has developed full contraction, the amount of continuing excitation can usually be reduced to far less than the initial level even though the muscle maintains its full force of contraction. Fuher the energy consumed to maintain contraction is often miniscule, sometimes as li... | 11,273 | medmcqa_train |
Gastro-colic reflex is related to : | A i.e. Mass persistalsis | 11,274 | medmcqa_train |
Middle cardiac vein is accompanied by | The middle cardiac vein commences at the apex of the hea; ascends in the posterior longitudinal sulcus along with posterior interventricular aery, and ends in the coronary sinus.Ref: V.S Volume 1; 2nd edition; Page: 276 | 11,275 | medmcqa_train |
Killian's dehisence is seen in ? | Ans. is 'c' i.e., Cricopharynx Inferior constrictor muscle has two pas :- (i) Thyropharyngeous with oblique fibres, and (ii) Cricopharyngeous with transverse fibres. Between these two pas of inferior constrictor exists a potential gap called Killan's dehiscence. It is also called the gateway to tear as perforation can ... | 11,276 | medmcqa_train |
White piedra is caused by | . | 11,277 | medmcqa_train |
An 86-year-old man has become progressively unable to live independently for the past 10 years, and he now requires assistance with bathing, dressing, toileting, feeding, and transfers in and out of chairs and bed. On physical examination, he has no motor or sensory deficits. He cannot give the current date or state wh... | Alzheimer's disease (AD) can be complicated by cerebral amyloid angiopathy and terminal hemorrhagic stroke. Formation and aggregation of the Ap peptide are now considered central to the pathogenesis of AD. Ap peptide is derived from the abnormal processing of amyloid precursor protein (APP). When APP, a transmembrane p... | 11,278 | medmcqa_train |
The commonest site for hypertensive intracerebral bleed is: | Ans. is 'a' i.e. Putamen Most common site of hypertensive hemorrhage is-Basal Ganglia (Putamen, thalamus & adjacent deep white matter) Also RememberM.C. intracranial hemorrhage: Intracerebral or intraparenchymal hemorrhage *M.C. cause of intracerebral hemorrhage: Hypertension due to rupture of small penetrating arterie... | 11,279 | medmcqa_train |
Which amino acid spares the use of methionine - | Ans. is 'a' i.e., Cysteine "Adequate dietary source of cysteine 'spares ' methionine".o Methionine is an essential amino acid.o Methionine is required for synthesis of cysteine (thus cysteine is non-essential amino acid)o Thus, cysteine can spare the requirment of methionine in diet. | 11,280 | medmcqa_train |
All are factors determining diffusion across membrane except | Ans b (particle size) Ref: Vasudevan 4th ed pg J3, Guyton 48, Ganong 22nd ed pg 4)Diffusion is affected by concentration gradient, temperature, and membrane pore size.The text given in Guyton about molecular size appears confusing, but it is clearly stated in Vasudevan andSreekumari that "permeability does not depend o... | 11,281 | medmcqa_train |
Which of the following statement is false about the condition depicted in given diagram ? | Radial hemimelia -Radial club hand -Deficiency of radial bone and thumb (40% of hand) - Hand deted to radial side - Associated conditions: 1. Hold Oram syndrome 2. VACTERL Management: -Pollicization (create thumb) -Centralization of ulna | 11,282 | medmcqa_train |
Mechanism of action of zileuton:- | Zileuton is a selective and specific inhibitor of 5-lipoxygenase, preventing the formation of both LTB4 and the cysteinyl leukotrienes. Because zafirlukast and montelukast are selective antagonists of the cysteinyl leukotriene- 1 receptor, they block the effects of cysteinyl leukotrienes. All three drugs are approved f... | 11,283 | medmcqa_train |
Menstrual regulation is done upto: September 2010 | Ans. C: 49 days of Amenorrhea Menstrual regulation provides best results when a person repos between the 35th-45th day from the last menstrual period (LMP) and the MR is done before the 49th day since the LMP. It has been observed that the procedure gives optimum results in terms of least occurrence of associated risks... | 11,284 | medmcqa_train |
A road traffic accident patient presents with breathlessness. Differentiation between cardiac tamponade and tension pneumothorax is best done by? | Ans. (d) Breath soundsRef. B&L page 354/ 26th Edition* Both Tension pneumothorax and Cardiac tamponade both present with breathlessness, tachypnea and distended neck veins* Tension pneumothorax features - Hyper resonance over the chest and absent breath sounds.* Cardiac tamponade - Classically, the presentation consist... | 11,285 | medmcqa_train |
Biopsy of a persistent exophytic area on the vulva of a 60 year old woman demonstrates a squamous epithelial lesion. No koilocytes are seen. The lesions show papillary projections composed of disordered, squamous epithelium with well differentiated cells. The basement membrane at the dermal-epidermal junction is focall... | The disruption of the basement membrane with cell groups extending deep into the dermis indicates that this is invasive squamous cell carcinoma of the vulva, which may arise in vulvar intraepithelial neoplasia, in condyloma, or spontaneously. The latter type (which is likely here) tends to be well differentiated, while... | 11,286 | medmcqa_train |
"Phantom calyx/Amputated calyx" on IVU is feature of? | Ans. A. TuberculosisEarly renal tb: IVUAdvanced renal tb: CTRadiologic findings in renal tb include:a. Urographic demonstration (ivu) of diminished excretion of the contrast medium, focally or generally.b. Poorly defined one or more calyces.c. Cavitation communicating with the pc system, demonstrable by urography or re... | 11,287 | medmcqa_train |
Following are the features of raised intracranial tension except - | There is Bradycardia. | 11,288 | medmcqa_train |
In primary open-angle glaucoma pilocarpine eye drops lowers the intraocular pressure by its direct action on the: | Ans. Longitudinal fibres of the ciliary muscle | 11,289 | medmcqa_train |
Formaldehyde gas sterilization is employed for? | Formaldehyde gas is used for sterilising instruments and heat sensitive catheters and for fumigating wards and sick rooms and laboratories REF:Ananthanarayan and Panicker's Textbook ofMicrobiology 8thEdition pg no:36 | 11,290 | medmcqa_train |
All of the following statements about Penicillin resistance are true, Except - | Ans. is b i.e., Alteration in target PBPs is an impoant resistance mechanism in gram negative bacteria PENICILLIN RESISTANCE o Mechanism of resistance are ? Penetration into the cell o Gram negative bacteria have an outer membrane just outside the cell wall. o Outer membrane is not present in gram positive bacteria, so... | 11,291 | medmcqa_train |
Phlyctenular conjunctivitis false is- | Tuberculous proteins were considered, previously, as the most common cause. Staphylococcus proteins are now thought to account for most of the cases. Age. Peak age group is 3-15 years. Phlyctenular keratoconjunctivitis is believed to be a delayed hypersensitivity (Type IV-cell mediated) response to endogenous microbial... | 11,292 | medmcqa_train |
A patient of glaucoma with bronchial asthma presents to the emergency with status asthamaticus, causative agent might have been) | Ans. is 'b' i.e. Timolol eye drops Timolol maleate is the most widely used drug for open angle glaucoma.It is non-selective B blocker (Blocks both B1 and B2B2 is responsible for bronchodilation, therefore blocking B2 would aggravate asthma.Instead of Timolol, Betaxolol can be used because it is a selective B1 blocker a... | 11,293 | medmcqa_train |
Loosening of association is an example of: | A. i.e. Formal thought disorder | 11,294 | medmcqa_train |
A 70-year-old male presents with hearing loss and tinnitus. On examination, he has a conductive type of deafness and a dull tympanic membrane on the right side. Lymph nodal enlargement of 3x3 cm was noted in the posterior triangle of the neck. Tympanogram revealed a type B wave. The most likely diagnosis is | Due to the obstruction of the eustachian tube, there is a conductive hearing loss with serious or suppurative otitis media. Tinnitus and dizziness may occur. Presence of unilateral serous otitis media in an adult should raise suspicion of nasopharyngeal growth. Rarely, the tumour grows up the tube into the middle ear. ... | 11,295 | medmcqa_train |
For pancreatic injury true is | Answer- D. HRCT is investigation of choicePancreatic injuries are mostly due to penetrating injuries.Moderate injuries usually require operative exploration, debridement, and the placement of external drains. | 11,296 | medmcqa_train |
Most common side effect of prilocaine is: | Prilocaine
It is similar to lidocaine but does not cause vasodilatation at the site of infiltration and has lower CNS toxicity due to larger volume of distribution and faster clearance. One of its metabolites has the potential to cause methemoglobinaemia. Prilocaine has been used for infiltration, nerve block, spinal a... | 11,297 | medmcqa_train |
Chronic simple glaucoma is a type of_____ glaucoma | Ans. b (Primary open angle) (Ref. Schlote, Pocket Atlas of Ophthalmology, p. 153).# Primary open-angle glaucoma is also known as chronic open-angle glaucoma, chronic simple glaucoma, glaucoma simplex. Not all people with POAG have elevated IOP, but decreasing the eye pressure further has been shown to stop progression.... | 11,298 | medmcqa_train |
Which of the following results in thirst | Control of ThirstIncrease thirstDecrease thirst| Plasma osmolarity| Plasma osmolarity| Blood volume| Blood volume| Blood pressure| Blood pressure| Angiotensin II| Angiotensin IIDry mouthGastric distentionRef: Guyton; 13th edition; Chapter 29; Urine Concentration and Dilution | 11,299 | medmcqa_train |
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