Competitive Exams: Medical Science MCQs (Practice-Test 42 of 135)

  1. distinction between a poorly differentiated carcinoma and a lymphoma can be made by immunoperoxidase staining of the tumour tissue with antibodies directed against

    1. desmin

    2. myoglobin

    3. vimentin

    4. cytokeratin

  2. Match List I (Morphological types of infarct) with List II (Extent of myocardial infarct) and select the correct answer:

    List-I List-II
    1. Transmural

    2. Subendocardial

    3. Intramural

    4. Sub-pericardial

    1. Restricted only in the midst of myocardium

    2. Overlapping of transmural infarct

    3. Through the through the myocardium

    4. Sub-picardial region of the myocardium

    • A
    • B
    • C
    • D
      • 3
      • 2
      • 1
      • 4
      • 2
      • 3
      • 1
      • 4
      • 3
      • 2
      • 4
      • 1
      • 4
      • 3
      • 2
      • 1
  3. Consider the following antigens/antibodies:

    1. Antibody to surface antigen (Anti HBs Ag antibody)

    2. HBe Ag (Hepatitis B envelope antigen)

    3. HBs AG (Hepatitis B surface antigen)

    The correct sequence of their appearance in Hepatitis B virus infection is

    1. 3, 2, 1

    2. 1, 2, 3

    3. 3, 1, 2

    4. 2, 1, 3

  4. Consider the following events:

    1. Ingestion of cyst

    2. Invasion of superior mesenteric vein

    3. Excystation

    4. Lung abscess

    5. Liver abscess

    The correct sequence of these events in the genesis of pulmonary amoebiasis is

    1. 1, 2, 3, 5, 4

    2. 1, 4, 2, 5, 4

    3. 1, 5, 3, 2, 4

    4. 1, 3, 5, 2, 4

  5. Nocardia resemble antinomyces morphologically but

    1. are anaerobic

    2. are facultative anaerobic

    3. are aerobic

    4. require CO2 for growth

  6. Rapid diagnosis of tuberculosis is possible with

    1. auramine-rhodamine stain

    2. Ziel-Neelsen stain

    3. Giemsa stain

    4. Leishman stain

  7. Match List I (organism) with List II (Medium used for cultivation) and select the correct answer:

    List-I List-II
    1. Vibrio cholerae

    2. Salmonella typhi

    3. Neisseria meningitidis

    4. Mycobacteria tuberculosis

    1. Wilson and Blair medium

    2. Thayer-Martin medium

    3. chocolate agar

    4. Thiosulphate citrate bile sucrase agar (TCBS)

    5. Lowerstein-Jensen medium

    • A
    • B
    • C
    • D
      • 2
      • 1
      • 5
      • 4
      • 3
      • 4
      • 2
      • 5
      • 4
      • 2
      • 3
      • 1
      • 4
      • 1
      • 3
      • 5
  8. Which one of the following ensures earliest laboratory diagnosis of enteric fever?

    1. Detection of microbial antigen by coagglutination method

    2. Detection of titration of antibody by various serological tests

    3. Blood culture

    4. None of the above

  9. The vaccine against N. Meningitides contains

    1. Whole bacteria

    2. Capsular polysaccharide

    3. Somatic O antigen

    4. lipopolysaccharide-protein complex

  10. A 25-year old male with congenital cyanotic heart disease reports to emergency with history of headaches. On examination, there is a systolic murmur best heard on the left side of the sternum in the fourth intercostals space; the second sound is not split. Temperature is 37.5o C. What is the most likely diagnosis?

    1. Cortical vein thrombosis

    2. Pyogenic septicaemia

    3. Cerebral abscess

    4. Encephalitis

  11. A 45-year old diabetic patient, usually well controlled on oral hypoglycaemic reports to the casualty with severe dehydration. His biochemical profile is: Sodium 148 meq/1, Potassium 3.2 mEq/1, Bicarbonate 4 mEq/1, chloride 118 mEq/1, PaCO2 13.5 mm Hg, pH-7 − 08 and Glucose-140 mg/100 ml. The most likely diagnosis is

    1. Lactic acidosis

    2. Diabetic ketoacidosis

    3. Lactic acidosis with hyperchloremic acidosis

    4. Hyperchloremic acidosis

  12. Consider the following statements: In protein energy malnutrition in adults

    1. 24 hour urinary Creatinine/height ratio is decreased.

    2. plasma Cortisol is often increased.

    3. reverse T3 (rT3) is low.

    4. they may be high plasma insulin level.

    Which of these statements are correct?

    1. 1, 2, and 3

    2. 2, 3 and 4

    3. 1, 3 and 4

    4. 1, 2 and 4

  13. Consider the following statements regarding lacunar infarction:

    1. Hypertension is the principal risk faction.

    2. It may be preceded by transient ischemic attacks.

    3. It is the result of embolic episodes.

    4. It varies in size from 3 or 4 mm to 1 − 2 cm.

    Which of these statemtns are correct?

    1. 1 and 4

    2. 2 and 3

    3. 1, 2 and 4

    4. 3 and 4

  14. All the following are true regarding cardiac imaging in diagnosis of acute MI Except:

    1. Thallium-201 produces cold spots

    2. Technitium-99 produces hot Spots

    3. Perfusion scanning is highly specific

    4. Old areas of infarction cannot be distinguished from acute infarct area by 2 − D echocardiography

  15. Microalbuminuria refers to urinary albumin excertion rate of

    1. 30 − 300 mg/24 hour

    2. 400 − 600 mg/24 hour

    3. 700 − 300 mg/24 hour

    4. > 100 mg/24 hour