Competitive Exams: Medical Science MCQs (Practice-Test 50 of 135)

  1. Consider the following carbohydrates:

    1. Galactitol (Dulcitol) in galactosemia.

    2. Mannitol in pentosuria.

    3. Sorbitol in diabetes mellitus.

    Accumulation of which of these leads to cataract formation?

    1. 1, 2 and 3

    2. 1 and 2

    3. 2 and 3

    4. 1 and 3

  2. A comatose patient with tremors is admitted to the hospital. His blood glucose level is 50 mg/dl. His urine is positive for Rothera's test, but negative for Benedict's test. He is suffering from

    1. Diabetes mellitus with ketosis

    2. Diabetes mellitus treated with insulin

    3. Renal glycosuria prolonged fasting

    4. Prolonged fasting

  3. Defective DNA repair is noticed in all of the following EXCEPT:

    1. Cystic fibrosis

    2. Fanconi's syndrome

    3. progeria

    4. Xeroderma pigmentosum

  4. Which one of the following processes is NOT a post-translation modification?

    1. Gamma carboxylation of prothrombin

    2. Hydroxylation of benzene ring of phenylalanine

    3. Hydroxylation of praline in collagen

    4. Removal of C peptide from proinsulin

  5. Which one of the following is the cause of type-II Crigler-Najjar syndrome?

    1. Deficiency of UDP-glucuronyl transferase

    2. Defective transport of copper in blood

    3. Defect in O-oxidation of fatty acids

    4. Deficiency of branching enzyme

  6. The production of bile is increased by all of the following EXCEPT:

    1. secretin

    2. The stimulation of vagus nerves

    3. Bile salts

    4. The stimulation of sympathetic nerves

  7. In addition to glycine, with other starting substance is required for the biosynthesis of heme?

    1. Succinyl CoA

    2. Acetyl CoA

    3. Malonyl CoA

    4. HMG CoA

  8. Consider the following statemtns regarding medical coma:

    1. Blood level of Phenobarbital above 12 mg/dl may cause apnoea and hypotension.

    2. Prognosis depends upon forebrain and upper brain stem functions being present

    3. papillary light reactions are always preserved in metabolic coma.

    4. Salicylate poisoning leading to coma may be associated with hyperthermia.

    Which of these statements are correct?

    1. 1, 2, 3 and 4

    2. 2, 3 and 4

    3. 1, 3 and 4

    4. 1 and 2

  9. Consider the following statements regarding status asthmaticus:

    1. Peak expiratory flow rate is reduced

    2. Maximal and mid-expiratory flow rate is reduced.

    3. Forced expiratory volume in one second is reduced.

    4. Reduction of vital capacity with increase in functional residual capacity.

    Which of the above statements are correct?

    1. 1 and 2

    2. 1, 3 and 4

    3. 2, 3 and 4

    4. 1, 2 and 3

  10. The treatment of choice for ventricular tachycardia with haemodynamic deterioration is

    1. magnesium sulphate

    2. atropine

    3. defibriallation

    4. transvenous pacing

  11. The following drugs are used to manage status epilepticus:

    1. Phenytoin

    2. diazepam

    3. sodium valproate

    4. Thipentone sodium

    The correct order of their use in case of unresponsiveness to the initial drug therapy is:

    1. 2, 1, 4, 3

    2. 4, 3, 2, 1

    3. 1, 2, 3, 4

    4. 2, 1, 3, 4

  12. consider the following statements: In acute renal failure

    1. pulmonary oedema may be a feature in some patients.

    2. rise in serum Creatinine level about 1.5 to 2 mg per deciliter per day is observed in severely oliguric person.

    3. urinary osmolarity approaches that of plasma if there is acute tubular injury

    4. Urinary sodium concentration is a less sensitive index to distinguish prerenal azotaemia from ischaemic nephropathy.

    Which of the above statements are correct?

    1. 1 and 2

    2. 2, 3 and 4

    3. 1, 3 and 4

    4. 1, 2, 3 and 4

  13. Consider the following stages:

    1. Foam cells

    2. Fatty streak

    3. Ruptured plaque

    4. Fibrolipid plaque

    The correct sequence of the evolution of an atheromatous plaque is:

    1. 2, 1, 4, 3

    2. 4, 2, 1, 3

    3. 1, 2, 3, 4

    4. 2, 1, 3, 4

  14. Match List I with List II and select the correct answer:

    List-I (Diseases) List-II (signs)
    1. Aortic stenosis

    2. Infective endocarditis

    3. Mitral regurgitation

    4. Acute rheumatic fever

    1. Roth's spots

    2. Erythema marginatum

    3. Reverse splitting of 2nd heart sound in pulmonary area

    4. splitting of 2nd heart sound at apex

    • A
    • B
    • C
    • D
      • 3
      • 1
      • 4
      • 2
      • 1
      • 3
      • 2
      • 4
      • 1
      • 3
      • 4
      • 2
      • 3
      • 1
      • 2
      • 4
  15. All the following features regarding Mycoplasma pneumonia are true EXCEPT:

    1. Radiographic picture may show extensive lesions consistent with interstitial pneumonitis even while the clinical signs are minimal

    2. Bilateral lung involvement is seen in nearly 75% of patients

    3. pleural involvement may occur

    4. pleural fluid is serosanguineous and transudative