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Mechanism by which water is reabsorbed from proximal convolved tubule is
Water is reabsorbed from PCT by osmosis. Ref: Ganong's review of medical physiology; 24th edition; page no: 685
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Regarding Juvenile 1,7ngeal papillomatosis, false is ?
Ans. is 'd' i.e., HPV 18 is the causative agent [(Ref Nelson l8n/e p' 1772; Dhingra 6h/e p' 449)Juvenile papilloma (Recurrent laryngeal papillomatosis/Recurrent respiratory papillomatosis)Recurrent Respiratory Laryngeal Papillomatosis is a disease of viral origin characterized by the presence of multiple recurrent papi...
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Transmission rate of HIV by needlestick injury in health professionals is
AUTOPSY OF A CASE OF AIDS AND INFECTIONS Universal Work Precautions: (1) All infected bodies should be wrapped and tied in double layer tough plastic bag, with a red colour tag mentioning "Biologically Hazardous". The label should mention the name, age, sex, registration number, etc. (2) Workers who have exudative lesi...
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medmcqa_train
Dysphagia lusoria is due to
The MC anomaly is right subclan aery arising from the descending aoa and travels behind the esophagus to complete its course to the right upper extremity, may cause significant posterior compression of the esophagus Ref : ENT textbook by Dhingra 6th edition Pgno : 447
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Doctor suspects homicide poisoning. Section under which he needs to inform police: AIIMS 14
Ans. Sec. 39 CrPC
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Holt oram syndrome is characterised by
Holt or am syndrome characterized by ASD. Ghai essential of pediatrics, eighth edition, p.no:401,table 15.7
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BMR is dependent on: March 2013
Ans. B i.e. Surface areaBasal metabolic rate/BMR and the closely related resting metabolic rate (RMR)It is the amount of energy expended daily by humans and other animals at rest.BMR generally decreases with age and with the decrease in lean body mass (as may happen with aging).Increasing muscle mass increases BMR
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Which of the following is not true of the following test:
(d) Stimulates Posterior Semicircular Canal(Ref. Scott Brown, 8th ed., Vol 2; page 796)It stimulates horizontal/lateral semicircular canal
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Secretomotor innervation to Parotid gland relays in:
Ref: Grays Anatomy 40th editionExplanation:Parasympathetic PATHWAYTympanic nerve arises from CN IX and emerges with it from the jugular foramen.|Tympanic nerve enters the middle ear via the tympanic canaliculus in the petrous part of the temporal bone.|Tympanic nerve forms the tympanic plexus on the promontory of the m...
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Methylphenidate is drug of choice for:
Ans. B. ADHDPharmacologic treatment is considered to be the first line of treatment for ADHD. Central nervous system stimulants are the first choice of agentsa. excellent safety records are documented for methylphenidateb. Dextroamphetamine and dextroamphetamine/amphetamine salt combinations are usually the second drug...
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Autoclaving is done at what temperature for 15 minutes: March 2010
Ans. B: 121 degree C
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True about rash of chicken pox ?
Ans. is 'b' i.e., Centripetal
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A 65-year-old coal miner is admitted for evaluation of chronic lung disease. The patient admits to smoking one pack of cigarettes a day for 40 years. On physical examination, he is noticed to have a barrel chest and use accessory muscles for inspiration. His face is puffy and red. He has 2+ pitting edema of the lower e...
Coal workers' pneumoconiosis is lung disease caused by inhalation of coal paicles and other admixed forms of dust. Coal workers' pneumoconiosis is also known as "black lung disease" due to massive deposits of carbon paicles. Complicated coal workers' pneumoconiosis (progressive massive fibrosis) occurs on a background ...
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Rate of newly synthesized osteoid mineralization can be best estimated by -
Tetracycline labelling for osteoid mineralization Tetracycline labelling is the method of choice for estimating newly synthesized osteoid mineralization in human. Tetracycline is incorporated into new areas of osteoid that are being laid down but not yet mineralized (osteoid seams). To estimate the rate of newly synt...
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In which of the following situations, the accused is punishable under Law:
Application of Mc Naughten's rule: If under an insane delusion, a person thinks that another person has caused serious injury to his character, family or propey and kills him, he becomes responsible because under the law, no one can kill a person in revenge. If under the influence of an insane delusion, a person thinks...
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While managing a mass disaster, the term "Triage" applies to -
Triage is an impoant pa of disaster management. Triage consist of rapidly classifying the injured on the basis of severity of their injuries and the likelihood of their survival with prompt medical intervention. Park's Textbook of Preventive and Social Medicine, 25th Edition, Pg 857
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A 6 year old boy presenting with palpable abdominal mass in the epigastrium. The clinical diagnosis is (There is no bile in vomitus)-
Ans. is 'c' i.e., Pyloric stenosisDiagnosis of congenital hyperophic pyloric stenosis o History of vomiting without bile (nonbilious vomiting).o Physical examination ?i) Palpable mass in the epigastriumii) After feeding, visible gastric peristatic wave that progresses across the abdomen.USG confirm the diagnosis Criter...
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Aboion stick used in criminal aboion causes aboion by the mechanism of -
Ref: Synopsis of forensic medicine and toxicology (K.S.Narayan Reddy) 28th edition, page no. 214 Aboion Stick: This is a thin wood or bamboo stick, from 12 to 13 cm long. This stick is wrapped round at one end or for a greater poion of its length with cotton-wool or a piece of cloth, and socked with juice of marking nu...
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A 5‑year‑old boy has been diagnosed to have posterior superior retraction pocket. All would constitute part of the management except:
Myringoplasty consists of closing a ‘central perforation’ in the tympanic membrane in the ‘tubotympanic type’ or ‘safe type’ of chronic suppurative otitis media. It is not indicated in unsafe or dangerous type of otitis media with posterosuperior atitic perforation. The patient in question is a case of dangerous or un...
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Iron absorption is increased by all except ?
Ans. is 'b' i.e., High phosphates in diet
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True about bater's syndrome are all except ?
Ans. is 'a' i.e., Hyperkalemic alkalosis
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Microorganism motile at 25deg C but not motile at 37deg C-
Ans. is 'a' i.e., Listeria monocytogens Listeria monocytogens exhibits characteristic, slow, tumbling motility when grown at 25degC but at 37degC it is non motile.
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To sta with all fibroids are :
Ans. is a i.e. Interstitial Fibroids are the commonest benign solid tumours in females.deg It is the most common pelvic tumour.deg Most common age group affected = 35 - 45 yearsdeg Extra Edge : Fibroid with maximum symptoms - submucous fibroid. Wandering or parasitic fibroid-subserous fibroid. Lantern on dome of St. Pa...
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Ribs develop from:
Ans. B Para-axial mesenchymeRef: Gray's Anatomy, 41st ed. pg. 212* The axial skeleton, vertebrae and ribs are derived from paraxial mesenchyme* The skull is derived from paraxial mesenchyme and neural crest mesenchyme* The skeletal elements in the limbs are derived from somatopleuric mesenchyme, which forms the limb bu...
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Which of the following exocrine galndular ducts are not obstructed in cystic fibrosis
Ans. is 'c' i.e., Sweat gland Most CF patients have 3 distinct abnormal characteristics. The ducts of the mucus-secreting glands are obstructed due to an increase in viscosity of these secretions leading to glandular dilatation and destruction. CF patients are prone to chronic bacterial colonization and infections. The...
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Which among the following glucose transpoer present in beta cells ?
GLUT2 is the glucose transpoer present in the betacells and liver cells.It has a high Km for glucose.Hence entry of glucose is directly propoional to the glucose level.It is an insul;in independent transpo. GLUT3 is present in brain and GLUT4 medites insulin dependent transpo of glucose into muscle and adipose tissue. ...
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Which one of the following disinfectant is not effective in killing spores?
ethyl and isopropyl alcohols are commonly used as antiseptics and disinfectants.when diluted with water ,they have potent bactericidal,fungicidal,virucidal and tuberculocidal propeies ,but doesnot destro spores.phenol and aldehydes are slowly effective against spores and gram negative bacteria. ref:park&;s textbook,ed ...
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Depolarisation in hair cells of organ of coi occurs due to:
Depolarisation in hair cells of organ of coi occurs primarily due to movement of basilar membrane TIP LINK THEORY: When the shoer stereocilia are pushed toward the taller ones, the channel open time is increased. K+, the most abundant cation in endolymph, and Ca2+ enter the channel and induce depolarization. Mainly K+ ...
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Irresistible desire to buy something is
Oniomania Irresistible desire to buy things (shopping addiction) Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 360
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The pair of muscles whose tendons are attached symmetrically to the medial cuneiform bone are
CUNEIFORM BONES:- Medial, intermediate and lateral.Medial- largestIntermediate- smallest Medial cuneiform:-Lateral surface has a L shaped facet for intermediate cuneiform.Attachments- Tibialis anterior Tibialis posterior Peroneus longus. Intermediate:-Lateral surface has a veical facet for lateral cuneiform bone.Attach...
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Bronchogenic sequestration is seen in whicj lobe -
Ref:Harsh Mohan - Textbook of Pathology, 6th Edition.page no.462 BRONCHOPULMONARY SEQUESTRATION Sequestration is the presence of lobes or segments of lung tissue which are not connected to the airway system. The blood supply of the sequestered area is not from the pulmonary aeries but from the aoa or its branches. Sequ...
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True statement regarding use of antiepileptic drugs in pregnancy
Neural tube defects are associated with valproate. fetal anticonvulsant syndrome or fetal hydantoin syndrome :risk is increased with the number of drugs.the cause is thought to be folate defeciency as these drugs interfere with folate metabolism monotherapy is associated with lower risk TEXTBOOK OF GYNECOLOGY,SHEILA BA...
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Upper GI endoscopy is indicated in all, except:
Ans. (d) Corrosive ingestion delayed phaseRef: Bailey and Love 26th Edition, Page 994* For corrosive ingestion endoscopy must be planned in early; phase within 48 hours* Endoscopy beyond 48 hours has more chances of perforation* Achalasia cases before endoscopy must be aspirated by Ryles tube in mediastinum
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Which of the following harmone is an example of peptide harmone?
Paratharmone is a polypeptide harmone. Dopamine and thyroxine is amino acid derivative. Cortisol is a steroid harmone.
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EEG taken during which of the following sleep stages shows sleep spindles?
Stage 2 sleep, a component of Non REM sleep is characterised by the presence of sleep spindles and K complexes. Sleep spindles appears as sinusoidal waves occurring at a frequency of 12-14 Hz. K complexes are occasional high voltage biphasic waves. Stage 1 sleep is characterised by the presence of theta waves 4-Hz). In...
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Lung compliance is increased in
Compliance is a measure of distensibility 1 static compliance(compliance when lungs at rest) Causes of decreased static compliance : a) interstitial fibrosis b)atelectasis c)pneumonia d) pulmonary edema e) ARDS 2 dynamic compliance:compliance with airway resistance Decreased in Broncho spasm like asthma.
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If in a locality API is more than 2, the folloiwng is done-
Ans. is 'b' i.e., 2 rounds of DDT per year with active and passive surveillance
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Erythroderma % of skin involved is -
ERYTHRODERMA:-Erythema and scaling involving more than 90% of the body surface area. When scaling is the predominant feature-exfoliative dermatitis. Etiology:-1. Pre existing skin disease-psoriasis,lichen planus,contact dermatitis,seborrheic dermatitis,crusted scabies.2. Drugs- Allopurinol,Dapsone,Gold,Nifedipine,Sulph...
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A 8-year old child was injected contrast in hand for CECT chest. Immediately he developed swelling in the arm which gradually increased. After 4 hours, there was numbness and pain, and he was not allowing the doctor to flex the hand. Pulse is present. What should be done?
Ans. c. Immediate fasciotomy (Ref: Rockwood 6/e p2127-2129; Apley 9/e p714, 8/e p728-729)Immediate development of swelling in the arm after contrast injection with numbness and pain is highly suggestive of compartment syndrome due to extravasation of contrast medium. Best treatment is immediate fasciotomy, so that cont...
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Which of the following is not a legal ground for divorce?
If either pay is mentally unsound from the time of marriage the marriage is void and hence no divorce is possible. Divorce is only applicable for the dissolution of a previously valid marriage. Grounds for divorce also includes: Cruelty, deseion, mental unsoundness developing after marriage, communicable venereal disea...
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A patient of head injury, has no relatives and requires urgent cranial decompression, doctor should:
Operate without formal consent is necessary in this case, delay will lead to death of the patient. Ref: Parikh's Textbook of Medical Jurisprudence Forensic Medicine and Toxicology, 5th Edition, Page 569 and 6th Edition, Page 1.37
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The commonest site of an intraperitoneal abscess
Pelvis is the most common intraperitoneal abscess.(50-60%).It is the collection of pus in rectovesical or rectouterine pouch(pouch of Douglas). The pelvis is the commonest site of an intraperitoneal abscess because the vermiform appendix is often pelvic in position and the fallopian tubes are frequent sites of infectio...
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Patient with a metallic foreign body in eye, which investigation is not done.
A i.e. MRI
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Following is transmitted as autosomal dominant disorder -
Ans. is 'c' i.e., Hereditary spherocytosis o Hereditary spherocytosis is an autosomal dominant disorder,o Other three disorders (given in question) are autosomal recessive.Autosomal dominant disordersNervousUrinaryGITHematologicalSkeletalMetabolico Huntington diseaseo Polycystic kidneyo Familial polyposis colio Heridit...
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Minimal pleural effusion is best detected by X–ray...view –
Lateral decubitus view is the best view to detect minimal pleural effusion.
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Action of the alpha subunit of G-protein is:
The α-subunit has GTPase activity: the bound GTP is slowly hydrolysed to GDP: the α-subunit then dissociates from the effector to rejoin its other subunits, but not before the effector has been activated / inhibited for several seconds (much longer than the life-time of the activated receptor, which is in milliseconds)...
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Aerial supply of tonsil is mainly by:
Ans. B Facial aery The aerial supply to the tonsil derives mainly from the tonsillar branch of the facial aery and the descending palatine aery; veins drain into the pharyngeal plexus and the lymphatic drainage from the tonsil is into the upper deep cervical lymph nodes, which may enlarge during tonsillar infection. Th...
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O2 delivery to tissue is decreased by:
A i.e. 4-ed Hemoglobin level
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Negative intrapleural pressure is due to:
absorption by lymphatics "A negative force is always required on the outside of the lungs to keep the lungs expanded. This is provided by negative pressure in the normal pleural space. The basic cause of this negative pressure is pumping of fluid from the space by the lymphatics (which is also the basis of the negative...
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Which of the following is characteristic of the mucosal immune system?
Ans. (d)Because the mucosal immune system is constantly exposed to so many nonself epitopes that are essentially harmless, it is tolerant of most of them. Although it can respond to microbes that pose a pathogenic threat, the mucosal system generally avoids the development of chronic inflammation because of the damage ...
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Galactorrhea, a milky discharge from the nipple in nonpregnant women, is most likely to be associated with which of the following?
Galactorrhea is fairly common up to old age. The discharge may vary in color from brown to milky. Hormonal causes are associated with elevated prolactin levels or with pituitary or thyroid disorders. Tranquilizers have also been implicated. Simple abscesses do not cause galactorrhea.
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A 6 hrs old snake bite patient come to emergency with mild local oedema at the injury site on examination no abnormality detected, laboratory investigation shows normal report, most appropriate management
Ans. is 'c' i.e Wait & Watch Most of the snake bites are from non-venomous snakes. Even in venomous snakes bites, inadequate snake venom is injected in more than half of the cases, producing mild symptoms.If the snake is poisonous signs and symptoms appear within 10 minutes to half an hour in case of Elapids (Cobras, K...
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Glucose is conveed to sorbitol by
In lens, the enzyme aldose reductase reduces monosaccharides to corresponding sugar alcohols; glucose to sorbitol and galactose to galactitol. POLYOL PATHWAY OF GLUCOSE - Sorbitol is very poorly absorbed from intestine. It involves the reduction of glucose by aldose reductase to sorbitol, which can then be oxidized to ...
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Which among the following does NOT lead to pigment gallstone?
Total parenteral nutrition (TPN) is associated with cholesterol and mixed stones. They develop sludge and stones due to stasis as there is no stimulus for contraction. Predisposing factors for pigment gallstone formation: Demographic/genetic factors: Asia, rural setting Chronic hemolysis Alcoholic cirrhosis Pernicious ...
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Following predispose to glaucoma, except:
Increased length of eyeball
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Bursa communicating with the shoulder joint space is
Infraspinatus bursa may communicate with the shoulder joint. Subacromial bursa separates the acromion process and the coracoacromial ligaments from supraspinatus tendon and permit smooth motion. B D Chaurasia 7th edition Page no: 148
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Viral infection not transmitted by blood transfusion is
Dengue fever is transmitted by the bite of Aedes aegypti mosquito. Parvovirus transmission through respiratory route and blood. Hepatitis by parental, sexual and perinatal. Cytomegalovirus - transmitted by transplacental route, postnatal infection by sexual intercourse, blood transfusion and organ transplantation. Ref:...
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Which of the following condition result in ahritis without erosion of the bones?
Among the options given, SLE is associated with non erosive type ahritis most commonly affecting the hands and wrists. Subluxation or dislocation without erosive disease is the hallmark of SLE.
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A grand multipara is a women who has given bih to bihs:
Grand multigravida - >= 5 times pregnant Problems related : Malpresentation Meconium stained liquor Placenta pre Abruption ' PPH Umbilical cord prolapse Low apgar score
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Treatment of choice in neurocysticercoses of T. Solium
(B) (Albendazole) (3431-H 18th)* Albendazole 15 mg/kg daily for a minimum of 8 days has become the drug of choice for parenchymal neurocysticercosis (380- Davidson 22nd)* Approximately 85% of parenclymal cysts are destroyed by a single course fo albendazole and 75% are destroyed by a single course of praziquantel for 1...
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Test used for detection of blood are all except ?
Ans. is `d' i.e., Reine's test Nature of stain (whether the stain is blood or not) To determine the nature of stain, following tests are used :? 1) Chemical tests These tests are based on the peroxidase activity of haematin, which is, derived from oxidation of haem of haemoglobin or methemoglobin,present. This enzyme, ...
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A 6 year old child has a DQ of 50. Which of the following can the child do?
At 3 years, a child can name 2 colors. At 5 years, a child can name 5 colors. DQ = Developmental age x 100/actual age 6 year old child has a DQ of 50; so his developmental age is 3 years. So he can do milestones corresponding to 3 years only. Gross Development delay=It occurs when DQ is less than 70% in >= 2 domains of...
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Anterior interventricular aery is a branch of
LEFT CORONARY AERY It is larger than the right coronary aery.It arises from the left posterior aoic sinus. Branches A.Large branches 1.Anterior interventricular 2.Branches to the diaphragmatic surface of the left ventricle,including a large diagonal branch. B.Small branches 1.Left atrial 2.Pulmonary 3.Terminal REF.B D ...
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Hand and foot syndrome is an adverse effect of
Ref-Katzung 11/e p947 Capecitabine and 5-FU can cause hand and foot syndrome
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Kamla, age 48 yrs, presents with unilateral mild axial proptosis. There is no redness or pain. Investigation of choice is :
A i.e. T3 & T4 measurement to rule out thyrotoxicosis
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Which of the following does not have a corresponding releasing hormone from the hypothalamus?
Prolactin secretion is under negative feedback control of hypothalamus through the release of dopamine, which normally exerts a tonic inhibition. There is no known specific hypothalamic prolactin releasing hormone. Hormones of the Anterior Pituitary :
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After overnight fasing, levels of glucosetranpoers reduced in
Adipocytes (Ref: Harper 28/e, p138, 171 (26/e p160, 232); Lippincott Biochem 3/e p310; Ganong23/e p320] Overnight fasting causes insulin levels to fall. This decreases the number of glucose transpoers which are insulin dependent. Insulin dependent glucose transpoers are GLUT-4, present in adipocytes, skeletal and cardi...
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How is primary amoebic meningoencephalitis most likely acquired?
PRIMARY AMOEBIC ENCEPHALITIS :- - Infection spreads post swimming in contaminated water. - Enters Olfactory mucosa in nose Treatment: Miltefosine + Amphotericin B
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A tuft of flagella present at one or both ends of bacterial cell is known as:
Arrangement/Types (i) Monotrichous—Single polar flagellum at one end. e.g. Vibrio cholerae. (ii) Amphitrichous—Single flagellum at both the ends. e.g. Alcaligenes faecalis. (iii) Lophotrichous—Tuft of flagella at one or both ends. e.g. Spirilla. (iv) Peritrichous—Flagella arranged all round the cell. e.g. Salmonella ty...
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Cytokine for activating macrophage and conveing to epitheloid cell or giant cell ?
Ans. is 'd' i.e., IFN gamma Granulomatous inflammation is a form of chronic inflammation characterized by collections of activated macrophages, often with T lymphocytes, and sometimes associated with central necrosis. These granulomas are type IV hypersensitivity reaction that involves CD4-helper T-cells. Helper T-cell...
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Ureteral tumor occurs most frequently in-
Cancer of the ureter (ureteral cancer) is a type of cancer that begins in the cells that line the inside of the tubes (ureters) that connect your kidneys to your bladder. Ureters are pa of the urinary tract, and they carry urine produced by the kidneys to the bladder. Ureteral cancer is uncommon
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X-linked recessive disorder with mental retardation and self mutilation is seen in -
X-linked recessive disorder causing MR :- Lesch - Nyhan syndrome, Hunter's syndrome. Self-mutilation behavior is seen in Lesch - Nyhan syndrome.
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Delayed wound healing is seen in all except:
Factors influencing healing of wound. site structure involved mechanism of wounding contamination loss of tissue local factors Systemic factors Factors that inhibit wound healing LOCAL FACTORS Infections Ischemia Foreign body Hematoma Movement Mechanical stress Necrotic tissue Tissue tension Large defect SYSTEMIC FACTO...
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Satellite lesions are seen in
Erythematous, well-defined, dry plaque with well-defined outer border and loss of appendages. Satellite lesions can be observed surrounding the large plaque. BT leprosy in Type 1 reaction presenting with ulnar nerve abscess and subsequent deformity in the form of ulnar clawing Ref Harrison20th edition pg 1234
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Chronic hepatitis C infection is associated with which psychological illness that may worsen with IF-a treatment?
The relationship between depression and disease progression is multifactorial and likely to involve psychological and social factors, alterations in immune function, and central nervous system disease. Chronic hepatitis C infection is associated with depression, which may worsen with interferon-a treatment.
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A child comes with steroid-resistant nephrotic syndrome secondary to FSGS, not responsive to methylprednisolone. What next should be given –
The treatment options for steroid-resistant nephrotic syndrome are: Calcineurin inhibitors (cyclosporine, Tacrolinzus) IV or oral cyclophosphamide Levamisol Mycophenolate Pulse corticosteroid All above immunosuppressants are used along with corticosteroids (Prednisolone or methylprednisolone). Cyclosporine and c...
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Which of the following is associated with destruction of valves?
Acute endocarditis referes to tumultuous v, destructive infections frequently involving a highly virulent organism attacking va previously normal value and capable of causing substantial morbidity and moality even with appropriate antibiotic therapy and surgery Robbins 9 th edition page no. 393
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Bernoulli's theorem explains -
The increased speed of the air flowing through the nose decreases the pressure in the nasal cavity (Bernoulli's theorem) which pulls down the polyp.
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Platelet adhesion to collagen is mediated by which of the following
Ref Robbins 8/e p116-118 Von Willebrand Factor's primary function is binding to other proteins, in paicular factor VIII, and it is impoant in platelet adhesion to wound sites. It is not an enzyme and, thus, has no catalytic activity. VWF binds to a number of cells and molecules. The most impoant ones are: Factor VIII i...
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Muscle spindle detects
Muscle spindles are sensory receptors within the belly of a muscle that primarily detect changes in the length of this muscle. They convey length information to the central nervous system sensory neurons. Ref guyton and hall textbook of medical physiology 12/e pg 71
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Most common cancer in men is
Answer- C. Prostate cancerCancers in males in India: Lip / oralcavity > Prostate > Colorectum > Pharynx (other than nssopharynx) > Larytx
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Which set of hormonal changes is most likely to occur in the plasma in response to the large dose of insulin injection?
Large dose of insulin injection will cause hypoglycaemia. Hypoglycemia triggers increased secretion of at least four counterregulatory hormones: glucagon, epinephrine, growth hormone, and coisol. Insulin inhibits glucagon secretion, so low blood glucose has an indirect effect on glucagon secretion through removal of in...
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Loxoscelism is a condition caused by the bite of which of the following?
Loxoscelism is caused by the bite of brown recluse spider/violin/fiddle back spider. Blister and rove beetles release vesicating fluid when it is crushed against skin resulting in acute irritant contact dermatitis. Ref: Rook's Textbook of Dermatology, 8th Edition, Page 38.26, 38.32.
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Norepinephrine action at synaptic cleft is terminated by-
Ans. is 'c' i.e., Reuptake o Metabolism does not play an impoant role in terminating the action of neuronally releases CAs. o It is axonal uptake which is responsible for terminating the action of CAs.
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Indication for lung transplantation is:
Ans. (d) All of the aboveRef: Sabiston 20th Page 1598Indications of lung transplantation* COPD* Pulmonary fibrosis* Primary pulmonary hypertension* Cystic fibrosis* Bronchiectasis
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Mechanism of action of aspirin is inhibition of:
Aspirin inactivates cyclo-oxygenase by irreversible acetylation of the enzyme and thereby inhibit the synthesis of throboxane A2. From medical pharmacology padmaja 4th edition Page no 344
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Antitrypsin deficiency is associated with-
Ans. is 'c' i.e., EmphysemaPathogenesis of Emphysema The most accepted theory in the pathogenesis of emphysema is protease - antiprotease mechanism which is responsible in the pathogenesis of two common forms of emphysema, i.e. centriacinar and panacinar.o The alveolar wall destruction results from an imbalance between...
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Metabolically the most active of the plasma lipids is
Free fatty acids  Plasma lipids consist of triacylglycerols (16%), phospholipids (30%), cholesterol (14%) and cholesteryl esters (36%), and a much smaller fraction of unesterified long chain fatty acids (4%). This latter fraction, the free fatty acids (FAA), is metabolically the most active of the plasma lipids.
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Pasteurization is____________________disinfection
Ans. is 'a' i.e., Precurrent 1. Types of disinfection Precurrent (prophylactic) disinfection o It is done as a preventive method (person is not ill). o For example --> Chlorination of water, pasteurization of milk, Handwashing. Concurrent disinfection 2. It is done when person is ill. o It is the application of disinfe...
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medmcqa_train
Edema over the mastoid is seen in-
Ans. is 'b' i.e., Lateral sinus thrombophlebitis Signs of lateral sinus thrombosis (sigmoid sinus thrombosis)o Griesinger's sign:- odema over the posterior part of mastoid due to thrombosis of mastoid emissary veinso Papilloedemao Tobey-Ayer testo Crowe-Beck test:- Pressure on jugular vein of healthy side produces engo...
12,589
medmcqa_train
Which one of the tissues putrefies late:
Ans. is 'b' i.e. prostateRef. Parik 6th/e p3.26 (5th/e p164)Prostate & testis in male and non gravid uterus and ovaries in female are the last organs to putrefy:As a general rule organs show putrefaction in following order:Larynx and TracheaStomach intestine and spleenLiver, LungsBrainHeartKidney, bladder, uterus, pros...
12,590
medmcqa_train
In a patient with history of anencephaly, what is the advise given?
Ans. is 'c' i.e., Periconceptional folic acid* Folic acid is given in periconceptional period to prevent neural tube defects (like Anencephaly).Has been explained in previous sessions.
12,591
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Germ tube test is done for
Germ tube test / Reynold braude phenomenon - specific test for Candida albicans Colonies are mixed with human or sheep serum & incubated for 2 hours . Wet mount preparation is examined under microscope. Germ tubes are formed , describe as long tube like projections extending from yeast cells.
12,592
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Second common malignancy in patients of retinoblastoma is?
ANSWER: (A) OsteosarcomaREF: Khurana 4th ed p. 281Heritable germ line cases of retinoblastoma develop bilateral tumours and multifocal tumours, and carry a predisposition to develop trilateral tumours most notably pinealoblastomas and osteosarcomas.Retinoblastoma is most common primary intraocular malignanacy of childh...
12,593
medmcqa_train
RNA is present in ?
Ans. is `d' i.e., All of the above mRNA is synthesized from DNA by the process of transcription in the nucleus. After formation mRNA transpo out of the nucleus into cytoplasm. t-RNA is also synthesized in nucleus and is transpoed to cytoplasm. Protein synthesis (translation) occurs in ribosomes, and requires both mRNA ...
12,594
medmcqa_train
Necrotizing lymphadenitis is seen in
Ref Harrison 17/e p1011 The other name for kikuchis fujimoto disease is histocytic nercrotizing lymphadenitis. Benign and self-centered disorder in young individuals characterised by cervical lymphadenopathy With tenderness .usually accompanied with mild fever and night sweats,may b viral on ethilogy
12,595
medmcqa_train
Chlamydia causes all except:
Typical pneumoniae
12,596
medmcqa_train
Which is likely to be increased in vitamin K deficiency:March 2004
Ans. B i.e. PTProthrombin time (PT)PT and its derived measures of prothrombin ratio (PR) and international normalized ratio (INR) are measures of the extrinsic pathway of coagulation.This test is also called "ProTime INR" and "PT/ INR".They are used to determine the clotting tendency of blood, in the measure of warfari...
12,597
medmcqa_train
Woody induration of rhinoscleroma is initially seen at which stage:
Ans. (c) Granulomatous stageRef: Dhingra's ENT 6th ed./156-57, 5th ed. /172B RHINOSCLEROMA* It is a chronic granulomatous disease caused by gram negative coccobacillus- Klebsiella Rhinoscleromatis.* It has 3 stages:# Catarrhal or atrophic stage: characterized by foul smelling purulent nasal discharge and crusting (caus...
12,598
medmcqa_train
False about defence attitude
DEFENCE ATTITUDE (PUGLISTIC ATTITUDE) IS PRESENT IN BOTH ANTEMOEM AND POSTMOEM FINDINGS. Pugilistic Attitude (boxing, fencing or defence attitude): This stiffening is due to the coagulation of proteins of the muscles. Contraction of paraspinal muscles causes opisthotonus This is one of the condition simulating rigor mo...
12,599
medmcqa_train