query stringlengths 1 1.57k | pos stringlengths 1 22.5k | idx int64 0 161k | task_name stringclasses 1
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Increase in threshold level on applying a sub-threshold, slowly rising stimulus is known as: | Accommodation:refers to gradual increase in threshold caused by prolonged slowly rising sub-threshold stimulus resulting from the inactivation of sodium channels. Adaptation: Decrease in response with continued application of stimulus. Some receptors of sensory system show this propey. Refractoriness: Is for the second... | 15,900 | medmcqa_train |
Knockout drops are: NEET 13 | Ans. Chloral hydrate | 15,901 | medmcqa_train |
A 2-year-old boy is brought to the physician by his parents, who complain that their son continually loses his balance. They also report that his speech seems more slurred. Physical examination confirms the truncal ataxia and wide-based gait. The child appears lethargic, and there is bobbing of the head while he is sit... | Medulloblastomas and, less commonly ependymomas and pineal parenchymal tumors, have a propensity to disseminate by way of the CSF throughout the CNS. Since medulloblastomas are close to the fourth ventricle, they may disseminate downstream into the spinal cord. The detection of neuronal and progenitor cell markers (e.g... | 15,902 | medmcqa_train |
A 24 year old underweight woman presents to you with progressive abdominal discomfo, dyspnoea, nausea and vomiting. Abdominal examination revealed cystic enlargement of ovaries. Relevant investigations results are as follows: Hematocrit - 57% Total count - 25000 /mm3 RFT -Impaired LFT - Mildly impaired USG - Massive as... | Here note that the serum peak oestradiol is very high and she had received an injection as a pa of her treatment for infeility which may have been human chorionic gonadotropin. This resulted in ovarian hyperstimulation syndrome. In Budd Chiari syndrome or Meigs syndrome oestradiol need not be this high. Note that throm... | 15,903 | medmcqa_train |
The risk of having a baby with Down syndrome for a 30-year-old woman increases | The risk of aneuploidy is increased with multiple miscarriages not attributable to other causes such as endocrine abnormalities or cervical incompetence.A 45, X karyotype results from loss of chromosome material and does not involve increased risks for nondisjunction errors.Similarly, induced ovulation does not result ... | 15,904 | medmcqa_train |
Uncontrolled phagocytosis of oxidized LDL paicles is a major stimulus for the development of foam cells and fatty streaks in the vascular subendothelium. This process may be inhibited by increased dietary intake of | Oxidation of lipid and protein poion of LDL is deleterious Oxidised LDL is taken up by scavenger receptors of the macrophages and leads to foam cell formation. This promotes atherosclerosis. Thus, it is impoant to prevent the oxidation of LDL. Vitamin E is the chain-breaking antioxidant that acts on the lipid phase of ... | 15,905 | medmcqa_train |
In the case of Hanging neck ligature marks are an example of | Ligature mark is a type of pressure /imprinted/ contact/patterned abrasion.
Some important facts:-
Patterned abrasions are any impact or pressure abrasions which reproduce the pattern of the object causing it.
Thus an impact abrasion may be a pattern abrasion if it reproduces the pattern of the object, e.g. a pattern ... | 15,906 | medmcqa_train |
Soft palate is supplied by | NERVE SUPPLY OF SOFT PALATE: MOTOR NERVE SUPPLY- All muscles of soft palate except tensor veli palatini are supplied by pharyngeal pouches. The fibers of this plexus are derived from the cranial pa of accessory nerve through vagus nerve. The tensor veli palatini is supplied by supplied by mandibular nerve GENERAL SENSO... | 15,907 | medmcqa_train |
Genes in CpP island is inactivated by: | Ans: a. Methylation[Ref Lippincott 6th/709; Harrison 19th/101e-4, 18th/668, 679; Robbins 9th/893; Satyanarayan 3rd/359, 572; Lippincott 4th/460-62; Chatterjea Shinde 7th/346, 426; en. wikipedia. org/wiki/DNA_methylationjCpG islands: Methylation of cytosine by a methyltransferase is associated with silencing of the acti... | 15,908 | medmcqa_train |
Immune complex formation, which structure of a protein is involved? | The primary structure is the sequence of the amino acids in a polypeptide chain.Secondary structure is the folding of sho (3- to 30-residue), contiguous segments of the polypeptide into geometrically ordered units.Teiary structure is the assembly of secondary structural units into larger functional units such as the ma... | 15,909 | medmcqa_train |
A 60-year-old woman with type 2 diabetes and end-stage renal disease receives a kidney transplant. Three weeks later, the patient presents with azotemia and oliguria. If this patient has developed acute renal failure, which of the following pathologic findings would be expected on renal biopsy? | Transplant rejection reactions have been traditionally categorized into:- Hyperacute Acute Chronic rejection based on the clinical tempo of the response and on the mechanisms involved. Acute rejection is characterized by an abrupt onset of azotemia and oliguria, which may be associated with fever and graft tenderness. ... | 15,910 | medmcqa_train |
16 F foleys is used in - | Ans. is 'a' i.e., Acute urinary retention * "Catheterization is mandatory for acute urinary retention. Spontaneous voiding may return, but a catheter should be left indwelling for 3 days while detrusor tone returns."- CSDT 13/e* 16F and 18F foleys are mainly used for adults* 8F and 10F are mainly used for children* Acu... | 15,911 | medmcqa_train |
Causative agent of acute rheumatic fever - | Ans. is 'a' i.e., Group 'A' p-hemolytic streptococcus o Acute rheumatic fever is caused by streptococcus pyogenes - group-A Beta hemolytic streptococcus. | 15,912 | medmcqa_train |
Azaserine inhibits? | In de novo synthesis of purine nucleotides, there are 10 steps. The 4th step (addition of N3) is catalysed by the enzyme Formyl glycinamide ribonucleotide amidotransferase. This enzyme is inhibited by azaserine, an anticancer drug. Reference: Harpers illustrated biochemistry 30th edition | 15,913 | medmcqa_train |
True about penderd's syndrome ? | Ans. is 'c' i.e., Sensorineural deafness Impoant features of Pendered syndrome: Congenital disorder Mutation in gene SLC 26 A4. Which codes for a protein called pendrin (helps in transpo of ions across membrane). Impaired activity of Pendrin is seen in inner ear and thyroid gland. Bilateral sensorineural hearing loss. ... | 15,914 | medmcqa_train |
Isolated deletion of which chromosome cause myelodysplastic syndrome | Ans. is 'b' i.e., 5q | 15,915 | medmcqa_train |
The magnitude of completed family size can be obtained from | Total feility rate represents the average number of children a woman would have if she were to pass through her reproductive years bearing children at the same rate as the women now in each age group.This measure gives an approximate magnitude of &;completed family size&;(Ref:- Park. 23rd ed. Page no 489) | 15,916 | medmcqa_train |
Drug of choice for diabetic diarrhea: | (Ref: Sleisenger and Fordtran's Gastrointestinal and Liver Disease, Volume 1; P 575)Diabetic diarrhea is seen in middle aged type 1 poorly controlled diabetic patients and is characterized by intermittent, brown, watery and voluminous stools which is occasionally accompanied by tenesmus.In these patients, GI adrenergic... | 15,917 | medmcqa_train |
The most common underlying anomaly in a child with recurrent urinary tract infection is: | * 30-35% children with UTI have VUR Recurrent UTI are observed in 30-50% children, usually within 3 months of the first episode. Predisposing factors for recurrent UTI include female sex, age below 6 months, obstructive uropathy, severe vesicoureteric reflux (VUR), habitual postponement of voiding (voiding dysfunction)... | 15,918 | medmcqa_train |
A 27-year old primigravida presented to the OPD with pregnancy induced hypeension at 32 weeks of gestation. She had no other complications. On examination she had a blood pressure of 150/100 mm of Hg. Her blood pressure was later controlled with treatment. lf there are no complications, the pregnancy should be terminat... | 37 weeks Ref : Dutta book of obstetrics 8th Ed | 15,919 | medmcqa_train |
Commonest complication of Colles fracture | In Colles fracture, Stiffness of the fingers (commonest) and malunion are common complications. Other complications seen occasionally are - Sudeck&;s osteodystrophy, carpal tunnel syndrome, and rupture of the extensor pollicis longus tendon. Maheswari 5th edition Pg: 114 | 15,920 | medmcqa_train |
Acronym "COWS" is used for? | ANSWER: (C) Bithermal caloric testREF: Dhingra 4th ed page 43FITZGERALD-H ALLPIKE TEST (BITHERMAL CALORIC TEST).In this test, patient lies supine with head tilted 30" forward so that horizontal canal is vertical. Ears are irrigated for 40 seconds alternately with water at 30degC and at 44"C (i.e. 7deg below and above n... | 15,921 | medmcqa_train |
A newborn has a swelling in neck due to soft cystic mass with trans-illumination test positive. Diagnosis is? | Ans. (c) Cystic hygromaRef : Bailey & Love 26th ed. / 701CYSTIC HYGROMA/LYM PH ANGIOMA* Cystic hygromas are multiloculated cystic swelling Filled with clear lymph lined by endothelial cells* It results due to sequestration of a portion of the jugular lymph sac from the lymphatic system.* It is associated with Turners s... | 15,922 | medmcqa_train |
All are HIV associated malignancies except- | AIDS-related lymphomas can be divided into three group -
Systemic
Lymphomas involving lymph nodes as well as extranodal visceral sites constitute 80% of all lymphomas.
The most common extranodal site affected is CNS
Aggressive B cell tumours
Primary CNS lymphoma
CNS is the primary site of lymphomatous involve... | 15,923 | medmcqa_train |
Diagnostic power of the test is reflected by- | Ref:Parks 25th edition pg 153 Predictive value reflects the diagnostic power of a test. Positive predictive value indicates the probability that a patient with a positive test result has, in fact, the disease in question. The more prevalent disease in a given population, the more accurate will be the predictive value o... | 15,924 | medmcqa_train |
'Frog eyes' appearance on USG is seen in : | FROG EYE SIGN Anencephaly on ultrasound On coronal ultrasound, the absence of the calvaria coupled with prominent orbits gives the fetus the 'frog eye' sign | 15,925 | medmcqa_train |
Route of transmission of HepatitisaEUR' E virus is: | Faeco oral | 15,926 | medmcqa_train |
All the following can be used to detect the mutation, except | Methods used for detecting mutations
Cytogenetics analysis
FISH
PCR,
RFLP
DNA sequencing, Southern blotting
Microarrays
Single-stranded conformational polymorphism (SSCP)
RNAase cleavage
Denaturating gradient gel electrophoresis (DGGE)
Protein truncation test | 15,927 | medmcqa_train |
Ligament of Berry in thyroid fixes - | Ligament of berry connects thyroid lobe to cricoid cartilage. | 15,928 | medmcqa_train |
Conn syndrome is seen due to increased production of | An adrenocoical disorder caused by excessive secretion of aldosterone. ; primary aldosteronismPrimary aldosteronism is an adrenocoical disorder caused by excessive secretion of aldosterone and characterized by headaches, nocturia, polyuria, fatigue, hypeension, potassium depletion, hypokalemic alkalosis, hypervolemia, ... | 15,929 | medmcqa_train |
Thalidomide used for multiple myeloma is | Refer Katzung 10th/919 Thalidomide used for morning sickness but later withdrawn due to teratogenic effects It is not extensively metabolized by microsomal enzymes It is now used for multiple myeloma It can also result in constipation ,peripheral neuropathy | 15,930 | medmcqa_train |
Avascular necrosis can be a possible sequelae of fracture of all of the following bones,except- | *Some of the common sites where Avascular necrosis occurs are : 1) Head of the femur 2) Proximal pole of scaphoid and 3) Body of the talus Ref: Maheshwari 6th/e p.50 | 15,931 | medmcqa_train |
A 25-year-old male gets into a brawl outside a bar. During the altercation, someone pulls out a gun and shoots him in the head. The bullet enters the man's temple and severes his right optic nerve completely. He is quickly transpoed to a nearby emergency room and an emergency physician tests his pupillary response by s... | This person is blind in the right eye. The afferent limb of the pupillary light reflex is carried by the optic nerve (CN II), and the efferent limb is the oculomotor nerve (CN III), which carries parasympathetic fibers from the Edinger-Westphal nucleus. Thus, shining a light in the affected eye will not elicit any pupi... | 15,932 | medmcqa_train |
Which of the following is the possible cause for the given USG finding? | Ans. C. Dichorionic Diamniotic TwinsThe given USG shows 'Lambda sign' or 'Twin peak sign' suggestive of Dichorionic diamniotic pregnancyNote - Monochorionic diamniotic pregnancy will show presence of' T - Sign' | 15,933 | medmcqa_train |
Atropine is used in uveitis because of which of the following features | Pilocarpine and not atropine cause sphincter pupillae contraction Use of atropine in uveitis - Relieve spasm - Prevents formation of posterior synechiae - Reduce exudation - Inc blood supply to uvea Rx UVEITIS * DOC: Steroids * Immunosuppressant are used in case of non responding case/ steroid sparing effect is needed | 15,934 | medmcqa_train |
Investigation of choice for bronchiectasis is: September 2009 | Ans. C: CT Scan High Resolution Computed Tomography (HRCT) is the investigation of choice for the diagnosis of bronchiectasis. It shows dilated bronchi adjacent to vascular structure forming a signet ring shape. The diameter of the lumen of the bronchi is characteristically larger than that of the vascular structure. T... | 15,935 | medmcqa_train |
Gas is filled as liquid in cylinder in – a) O2b) CO2 c) N2Od) Cyclopropanee) Halothane | Oxygen, nitrogen, air and helium → Gaseous form
Nitrous oxide, carbon dioxide and cyclopropane → Liquid in equilibrium with saturated vapour. | 15,936 | medmcqa_train |
Which bacteria has peritrichous flagella | Peritrichous - Flagella all over
Ex:-
E.Coli
Proteus
Listeria. | 15,937 | medmcqa_train |
A 40 year old male, with history of daily alcohol consumption for the last 7 years, is brought to the hospital emergency room with acute onsent of seeing snakes all around him in the room, not recognizing family members, violent behavior and tremulousness for few hours. There is history of his having missed the alcohol... | This person is having symptoms of delirium after alcohol withdrawal → delirium tremens. | 15,938 | medmcqa_train |
A 40 year old female came to your OPD with complaints of excessive fatigue, constipation, alopecia & gives history of weight gain of around 5 kg in last 3 months despite regular diet & physical activity. Her thyroid profile show TSH- 20 mU/L & free T4 is low. Your next step in diagnosis of etiology would be? | The most common cause of hypothyroidism in India is Hashimoto thyroiditis Since TSH levels are elevated in this patient, we will suspect primary cause of hypothyroidism. Therefore, Anti peroxidase antibody test is useful If TSH level is low then we suspect secondary cause (pituitary) and go for MRI head Antithyroglobul... | 15,939 | medmcqa_train |
All are indications of intra uterine insemination EXCEPT: | Tubal blockade REF: A handbook of intrauterine insemination by Godwin Ikechukwu Meniru, Peter R. Brinsden, Ian Logan Craft Page 4 Indications of intrauterine insemination: Ejaculatory failure (neurogenic, psychogenic, hypospadias, retrograde ejaculation) Cervical factor (poor cervical mucus, cervical mucus hostility) M... | 15,940 | medmcqa_train |
Feature which differentiates true from aificial bruise is - | The synopsis of forensic medicine & toxicology ; Dr k.s.narayan ; 28 th edition Pg .no. 110 Table 8-3 Shape of true bruise is usually round while that of aificial bruise is irregular .Erythema & swelling seen in the surrounding area in case of aificial bruise not in true bruise .In true bruise erythema and swelling is ... | 15,941 | medmcqa_train |
In G6PD deficiency hemolysis can be caused byall except ? | Ans. is 'd' i.e., Penicillin | 15,942 | medmcqa_train |
All of the following maintain the stability of ankle joint, EXCEPT? | Cruciate ligaments occur in the knee. There are two cruciate ligaments in the knee: the anterior and the posterior. These ligaments are two strong, rounded bands that extend from the head of the tibia to the intercondyloid notch of the femur. The ACL is lateral and the PCL is medial. They maintain the stability of the ... | 15,943 | medmcqa_train |
Drug of choice for treatment of chronic myeloid leukemia is | Imatinib - first line drug for chronic phase CML,in blast crisis and second line therapy for chronic phase CML that has progressed on prior IFN-a therapy Imatinib is also first line drug for metastatic c-kit positive GIST. Nilotinib, Bosutinib, Dasatinib - used in treatment of resistant CML Dasatinib is also used for t... | 15,944 | medmcqa_train |
Skin change in newborn that disappear spontaneously | .Harlequin color change is a cutaneous condition seen in newborn babies characterized by momentary red color changes of half the child, sharply demarcated at the body&;s midline. This transient change occurs in approximately 10% of healthy newborns. It is seen usually between two and five days of bih. Reference: GHAI E... | 15,945 | medmcqa_train |
P.F. causes - | Ans. is 'a' i.e., Thrombocytopenia; 'b' i.e., DIC; 'c' i.e., Hemolysis - Cerebral malaria - Lactic acidosis - Hypoglycemia - Non cardiogenic pulmonary edema (ARDS) - Acute tubular necrosis (ATN) -3 Renal failure - Hemolytic anemia and mild thrombocytopenia - DIC - Liver dysfunction with jaundice - Low bih weight in pri... | 15,946 | medmcqa_train |
Blast cells of ALL in childhood have: | CALLA +ve The blast cells of ALL mayor may not react to Common Acute Lymphocytic Leukemia Antigen (CALLA). They are classified as CALLA +ve or CALLA -ve | 15,947 | medmcqa_train |
Reverse bevel is indicated for all of the following cast materials except: | Reverse bevel is placed at the expense of the gingival floor, creating an internal dentinal plane inclining gingival - axially, locking the restoration and preventing proximal displacement. It always has a flat dentinal transition between it and the proximal gingival level.
It can only be used when the gingival floor has... | 15,948 | medmcqa_train |
A 20-year-old patient presents to the OPD with complaints of abdominal pain, weakness since 2 months. The stool microscopy reveals the following. The most probable causative agent is | The given clinical history and the stool microscopy showing the egg is suggestive of Ancylostoma duodenale. Eggs of both Ancylostoma Duodenale (old world hookworm) and Necator Americanus(new world hookworm) are identical. The characteristics of hookworm eggs are: Oval or elliptical, colorless non-bile stained Has a thi... | 15,949 | medmcqa_train |
Heart failure cells are seen in - | Ans. is 'c' i.e., Lungs o Heart failure cells are hemosiderin containing macrophages in alveoli that are seen in left ventricular failure and denotes previous episodes of pulmonary edema. | 15,950 | medmcqa_train |
Immune complex deposition is the basic underlying pathology in which type of hypersensitivity reaction? | Ref: Robbins Pathologic Basis of Disease. 8flt editionExplanation:(See the following table) | 15,951 | medmcqa_train |
A 45 year male presents with delirium, increased body temperature, dryness, dilated pupils and HR 130/min. Possible diagnosis: | (Ref: Katzung Pharmacology, 14th ed. pg. 127-28)Organophosphates are irreversible Acetylcholinesterase inhibitor which is well absorbed from the skin, lung, gut, and conjunctiva--thereby making them dangerous to humans and highly effective as insecticides.Due to inhibition of acetylcholinesterase enzyme, acetylcholine ... | 15,952 | medmcqa_train |
A 27 year old patient presented with left sided abdominal pain to the emergency room; 6 hours after an A. He is hemodynamically stable and FAST positive. A CECT (contrast enhanced CT) scan shows a contrast blush along with a grade III laceration. What will be the most appropriate management. | The presence of blush on the CT scan is indicative of potential ongoing bleeding & increased likelihood of need for operative intervention. The presence of blush has also been used as a trigger for angiographc embolisation in hemodynamically stable patients to prevent ongoing or recurrent bleeding. Reference: Greenfiel... | 15,953 | medmcqa_train |
orbital cellulitis is complication of: | Orbital cellulitis can occur as a complication of sinusitis and injuries.As far as endoscopic sinus surgery is concerned,it can lead to orbital and intracranial complications so orbital cellulitis can occurvin it also. Ref Scott Brown 7/e,Vol 2,p 1485. | 15,954 | medmcqa_train |
The therapeutic efficacy of antihypeensive drugs is blunted by NSAIDs because of : | NSAIDs inhibit Prostaglandin production including PGI2 which causes vasodilatation Ref: KD Tripathi 8th ed | 15,955 | medmcqa_train |
A 35-year-old woman is admitted to the hospital with dyspnea. During physical examination her S1 heart sound is very loud. Which of the following valves is most likely defective? | The mitral valve corresponds to the S1 heart sound produced during systole. The aortic and pulmonary valves correspond to the S2 heart sound produced during diastole. The tricuspid valve also corresponds with the S1 heart sound. The aortic valve, however, corresponds with the S2 sound, so this answer would be incorrect... | 15,956 | medmcqa_train |
Not a radiological finding of scurvy | Fraying is seen in Rickets. | 15,957 | medmcqa_train |
C3b is converted to C3 convertase by | C3b is converted to C3 convertase by Factor B, Factor D, Properdin. | 15,958 | medmcqa_train |
All enzyme activity is increased in fasting state Except | MetabolismRegulatory enzymesLipid metabolism Fatty acid oxidation Carnitine acyl transferase 1KetogenesisHMG CoA synthaseLipolysis Hormone sensitive lipaseCarbohydrate metabolism Glycogenolysis Glycogen phosphorylase Gluconeogenesis Pyruvate carboxylasePhospho enol pyruvate carboxykinase (PEPCK)Fructose1,6 bisphosphata... | 15,959 | medmcqa_train |
Trismus in parapharyngeal abscess is due to spasm of: | Styloid process divides the pharynx into anterior and posterior compament. Trismus occurs in infection of anterior compament whereas toicollis (due to spasm of paraveebral muscles) occurs in the infection of posterior compament. | 15,960 | medmcqa_train |
A 27 years pregnant female with flamingo pink color tympanic membrane comes with history of traumatic ossicular discontinuity. Type of curve expected on tympanometry: | (Refer: PL Dhingra, Textbook of Ear, Nose, Throat, 6th edition, pg no: 24)
Otosclerosis (Otospongiosis)
Disease of bony labyrinth where the normal dense enchondral bone is replaced by foci of irregularly laid spongy bone.
50% patients have positive family history, inherited as autosomal dominant
White races are affect... | 15,961 | medmcqa_train |
A 41 year old woman presented with a history of aches and pains all over the body and generalized weakness for four years. She cannot sleep because of the illness and has lost her appetite as well. She has lack of interest in work and doesn't like to meet friends and relatives. She denies feelings of sadness. Her most ... | B i.e. Major depression For ruling outFor diagnosing Major depression* Somatization disorder, look for 4 pain, 2 gastrointestinal, 2A. essential criteriasexual & 1 pseudoneurological symptomsQ1. Depressed/Low mood* Dissociative disorder, look for2. Loss of interest or pleasureQ- Dissociative amnesia for stressful event... | 15,962 | medmcqa_train |
Most common type of hypospadias is ? | Hypospadias is classified according to the position of the meatus into: * Glanular hypospadias. This is most common type and does not usually require treatment. The normal site of the external meatus is marked by a blind pit, although it occasionally connects by a channel to the ectopic opening on the underside of the ... | 15,963 | medmcqa_train |
Small for date baby has bih weight - | They weigh kess than 10th percentile for the gestational age.REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-494 | 15,964 | medmcqa_train |
Which of the following is the drugs of choice for corneal herpes? | Acyclovir is the drug of choice for treatment of herpetic infection of eye, skin and genitals. It acts selectively against the herpes. It penetrates the intact corneal epithelium and stroma and produces therapeutic concentration in the aqueous humor. Vidarabine is active against a number of DNA viruses and is indicated... | 15,965 | medmcqa_train |
Dermatomyositis test of choice - | Ans is 'a' i.e., CPK Investigations for Dermatomyositiso Muscle enzymes CPK Elevation (mostsensitive), aldolase elevation, myoglobin levation, 24 urinary creatine excretion.o Autoantibodies ANA antibodies, anti Jo-i (20% cases), anti- Mi-2 (5-10%)o Others ESR, RF factor, skin & muscle biopsy, EMG | 15,966 | medmcqa_train |
Decidual casts bleeding per vaginum suggestive of : | Tubal aboion | 15,967 | medmcqa_train |
Which of the following malignant tumours is radioresistant? | Ans. Osteosarcoma | 15,968 | medmcqa_train |
Most common paraneoplastic syndrome in HCC | Ans. (a) HypoglycemiaRef: Sabiston 20th edition page 1459Paraneoplastic Syndrome:* Less than 1% cases present with paraneoplastic syndrome most commonly Hypercalcemia, Hypoglycemia, Erythrocytosis.* Hyper Cholesterolemia is the MC Paraneoplastic Syndrome > Hypoglycemia. | 15,969 | medmcqa_train |
To do myringotomy in ASOM, the incision is given in posteroinferior region, this is the preferred region for all the following reasons except. | In SOM, myringotomy is done in antero-inferior quadrent because:It is relatively avascular area. blood loss is lessNo impoant structures are present here. No possibility of them being damaged.To stimulate Eustachian tube (which also lies in antero inferior quadrant) | 15,970 | medmcqa_train |
Amino acid with dissociation constant closest to physiological pH is - | Each amino acid have two ionizable group: (r) c-carboxyl group (-COOH), and (ii) c-amino group (-NHr). Beside these two groups, some amino acids have special ionizable groups. e.g. -SH of cysteine, imidazole of histidine. Dissociation constant (pka) is the value of pH at which any ionizable group of amino acid is in 50... | 15,971 | medmcqa_train |
Which is not a branch of cavernous pa of internal carotid aery | Ophthalmic aery The internal carotid aery begins at the level of the upper border of the thyroid cailage as one of the terminal branches of the common carotid aeryIts course is divided into four pas:Pas of ICABranches(A) Cervical paNo branches(B) Petrous pa* Caroticotympanic a.* Pterygoid a.(C) Cavernous pa* Cavernous ... | 15,972 | medmcqa_train |
Which of the following is caused by bilateral parietal lesions leading to visuomotor difficulty? | Balint&;s syndrome is an uncommon and incompletely understood triad of severe neuropsychological impairments: inability to perceive the visual field as a whole (simultanagnosia), difficulty in fixating the eyes (oculomotor apraxia), and inability to move the hand to a specific object by using vision (optic ataxia).Bali... | 15,973 | medmcqa_train |
Delusion is not seen in | Delusion is psychotic symptom, can be associated with schizophrenia, depression with psychotic symptoms, mania with psychotic symptoms. anxiety disorder is a type of neurosis here the patients will have insight they will present with palpitations, breathlessness, ruminations, worries, distress and fear of impending doo... | 15,974 | medmcqa_train |
The genome of HIV virus contains which of the following? | HIV is an enveloped icosahedral sphere. It has 2 identical, non complementary strands of RNA and 3 enzymes (reverse transcriptase, integrase and protease) packed in a cone shaped protein core. This core is surrounded by a protein coat called capsid. This capsid along with the enclosed nucleic acid is called nucleocapsi... | 15,975 | medmcqa_train |
A 3-year-old boy is brought to the outpatient clinic with a swelling in the side of his neck. Physical examination reveals a congenital mass of tissue anterior to the superior third of the sternocleidomastoid muscle. The swelling is asymptomatic, non-painful, and soft. Which of the following is the most likely diagnosi... | (a) Source: GAS 970-971; GA 492-493 Pharyngeal (branchial) cleft cysts are the most common congenital cause of a neck mass. They are epithelial cysts that arise anterior to the superior third of the sternocleidomastoid muscle (1) from a failure of obliteration of the second branchial cleft in embryonic development. The... | 15,976 | medmcqa_train |
What is the mode of inheritance of APKD? | Ans is 'a' i.e., Autosomal dominant Summary of Renal cystic disease InheritancePathologic featuresClinical features of ComplicationsAdult polycystic kidney diseaseAutosomal dominantLarge multicystic kidneys, liver cysts, berry aneurysmsHematuria, flank, pain, urinary tract infection, renal stones, hypertensionChildhood... | 15,977 | medmcqa_train |
Receptive relaxation is a characteristic of the following pa of gastro intestinal tract: | The ability of the stomach to relax as its volume increases is essential to its reservoir function. The process by which this occurs is referred to as receptive relaxation, and results in a drop in gastric pressure immediately after eating that persists until all solids have been emptied from the stomach. It has two ph... | 15,978 | medmcqa_train |
A 46-year-old man presented to the casualty with acute onset of seeing lizards all all around him in the room. He has been violent towards members of his brother who tried to bring him to hospital. On history he has a longstanding history of drinking alcohol and using cannabis for 7 years. He had missed his drinks for ... | The clinical presentation suggests severe alcohol (ethanol) withdrawal or Delirium Tremens. The immediate management includes the use of long-acting benzodiazepines. In the given choices both Chlordiazepoxide (Librium) and Diazepam are long acting. However, Chlordiazepoxide (Librium) is longer acting than diazepam. The... | 15,979 | medmcqa_train |
Silicosis can be controlled by: September 2004 | Ans. B i.e. Rigorous dust control | 15,980 | medmcqa_train |
Which of the following coagulation factors causes cross linking and stabilization of clot. | A i.e. Factor XIIIFactor XIII (13) also known as fibrin stabilizing factor, when gets activated (by thrombin) cause formation of covalent cross linkages and provide three dimensional strength to fibrin meshwork (stbilization)QFactor XIII (a) conves a loose mesh of interlacing fibrin strands to a tightly dense aggregate... | 15,981 | medmcqa_train |
ETHER DAY is celebrated on | Ether Day," Friday 16 October 1846 marks the first successful demonstration of the inhalation of ether vapour as a means of overcoming pain of surgery by the dentist William Thomas Green Moon Ref ganong's review of medical physiology 25e 561 | 15,982 | medmcqa_train |
Most afferent fibers from the lateral nucleus terminate in the primary visual cortex is | Like almost all other portions of the visual cortex, the primary visual cortex has six distinct layers. Also, as is true for the other sensory systems, the geniculocalcarine fibres terminate mainly in layer 4. | 15,983 | medmcqa_train |
Group of alleles that are closely linked together at a genomic locus & inherited together as a cluster is/are: | Ans. (B) Haplotype( )The entire human genome now can be divided into blocks known as haplotypes, which contain varying numbers of contiguous single nucleotide polymorphisms on the same chromosome that are in linkage disequilibrium & hence inherited together as a clusterA haplotype refers to a group of alleles that are ... | 15,984 | medmcqa_train |
Which ion channel is effected in hypokalemic periodic paralysis? | Hypokalemic periodic paralysis is due to calcium channel mutations. Hypokalemic periodic paralysis, in which serum potassium drops during a paralytic episode, is the most common of the inherited periodic paralyses. Ref Davidson 23rd edition pg 366 | 15,985 | medmcqa_train |
All of the following are paraphilias EXCEPT: | Ans. (d) BisexualityRef: The Essentials ofFSM by K.S. Narayan Reddy 31st ed. / 402-403* Paraphilias: Abnormal 8c unorthodox sex play by using unusual objects or parts are know as paraphilia eg. Sadomasochism, Transvestism, Bestiality, Frotteurism, Homosexuality etc.* Bisexuality means hermaphrodite; an individual with ... | 15,986 | medmcqa_train |
The theory of "epidemiological web of causation" was forwarded by | For explaining the causation of such non-communicable diseases, in paicular, McMahon and Colleagues (McMahon and Pugh T. Epidemiology: Principle and methods 1st Ed, 1970) forwarded the theory of "epidemiological web of causation" Ref: McMahon and Colleagues. Text book on Public Health and Community Medicine pg: 19. | 15,987 | medmcqa_train |
The type of Diphtheria with highest moality is - | Ans. is 'c' i.e., Laryngeal | 15,988 | medmcqa_train |
Stress-induced hyperglycemia is due to: | A i.e. Glucocoicoids; B i.e. GH; C i.e. Epinephrine | 15,989 | medmcqa_train |
A 63-year-old man presents with weakness and hemoptysis, but no fever, cough, or sputum. He has a 60-pack-per-year history of smoking. The chest x-ray (CXR) reveals a lung mass with mediastinal widening. On examination, there is a blue purple discoloration of the upper eyelids and erythema on his knuckles. He has proxi... | This man has dermatomyositis, a paraneoplastic phenomenon of many cancers. The most common tumors associated with DM have been bronchogenic carcinomas, ovarian cancers, breast cancers, and melanoma but many others have occurred. The malignancy may antedate or postdate the myositis. Older age makes malignancy more likel... | 15,990 | medmcqa_train |
Quinidine exes its action on the hea by | It is d-isomer quinidine is used as an antiarrhythmic drug. Quinidine blocks myocardial Na channels. Class 1a group of drugs- quinidine, procainamide, disopyramide Ib: Lidocaine, phenytoin Ic-encainide, flecainide Ref: KD tripathi 8th ed. | 15,991 | medmcqa_train |
STYLOHYOID muscle is supplied by ? | Ans. is 'a' i.e., Facial | 15,992 | medmcqa_train |
Which of the following does NOT scavenge free radicals in the lens? | Vitamin A Repeat from - May 08 & May 07 Antioxidant mechanisms within lens - Superoxide dismutase - Glutathione peroxidase - Catalase - Vitamin C (Ascorbic acid) - Vitamin E | 15,993 | medmcqa_train |
Best indicator of Ovarian reserve : | None of the ovarian reserve tests currently in use are accurate predictors for pregnancy With current methods, basal FSH concentration is simplest and most widely used to test ovarian reserve. Levels greater than 10 IU/L (10-20 IU/L) have high specificity (80-100%) for predicting poor ovarian response to ovulation. Ser... | 15,994 | medmcqa_train |
Which line represent the disease directly causing death, in death certificated - | Ans. is 'a' i.e., Ia * The basis of mortality data is death certificate. For ensuring national and international comparability, it is necessary to have a uniform and standardized system of recording and classifying deaths. For this purpose WHO has recommended international death certificate.* Consist of four lines:-# L... | 15,995 | medmcqa_train |
Spliting of the glomerular basement membrane is seen in - | Ans. is 'c' i.e., Membranoproliferative glomerulonephritis | 15,996 | medmcqa_train |
Cochlear microphonic potentials exhibits | i.e. (Produced by outer hair cells):COCHLEAR MICROPHONIC (CM) - when basilar membrane moves in response to sound stimulus, electrical resistance at the tip of hair cells changes allowing flow of K+ through hair cells and produces voltage fluctuations called cochlear microphonic. It is an alternating current (AC) potent... | 15,997 | medmcqa_train |
Which has the maximum bioavailability? | Among statins, fluvastatin is having a good oral bioavailability Pravastatin- approved for children above 8 years Ref: KD Tripathi 8th ed | 15,998 | medmcqa_train |
Adult patient with multiple scaly macules over chest and back, test which can diagnose this condition is/ are? | Ans. is 'd' i.e., All the above Information in this question Adult patient Hypopigmented macule With scales Over chest and back Most probable diagnosis is: Pityriasis versicolor Diagnosis of Pityriasis versicolor Examination of scales in 10% KOH shows sho hyphae and round spores (Sphagetti and meat ball appearance). Wo... | 15,999 | medmcqa_train |
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