medical MCQs – Page 240

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

4781. Small packets of acetylcholine released randomly from the nerve cell membrane at rest Produces_______________?
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A. Miniature end plate potential

B. Action potential

C. Inhibitory post synaptic potential

D. End plate potential

4782. tidal volume in adult is_____________?
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A. 500 ml

B. 125 ml

C. 2200 ml

D. 1500 ml

4783. Inulin clearance closely resembles_____________?
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A. Renal plasma flow

B. P.A.H. clearance

C. Creatinine clearance

D. G.F.R

4784. The universal blood recipient group is_________________?
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A. AB- Ve

B. O- Ve

C. AB+ Ve

D. O+ Ve

4785. The biological anticoagulant is________________?
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A. Sodium citrate

B. Hirundine

C. EDTA

D. Double oxalate mixture

4786. Site of RBC formation in 20 years old healthy male is____________?
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A. Yolk sac

B. Long bones

C. Liver

D. Flat bones

4787. Oxygen as an emergency drug is contraindicated in______________?
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A. Asthma

B. Hyperventilation

C. COPD

D. Anaphylaxis

4788. Which of the following adaptations will be apt to increase the work capacity at high altitude_________________?
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A. Increased workload, increasing duration of exercise

B. Decreasing workload, increasing duration of exercise

C. Increased workload, decreasing duration of exercise

D. Decreasing workload, decreasing duration of exercise

4789. The conversion of prothrombin to thrombin, the factor participate along with calcium is______________?
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A. Labile factor

B. Stable factor

C. Thromboplastin

D. Fibrin

4790. Renin secretion is stimulated by all except_____________?
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A. High Na+ in proximal tubule

B. Sympathetic stimulation

C. Low Na+ in proximal tubule

D. Cardiac failure

4791. The best screening test for hemophilia is_____________?
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A. BT

B. PTT

C. CRT

D. PT

4792. Oxygen dissociation curve shifts to the right by all of the following except_____________?
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A. Rise in temperature

B. Rise in carbon dioxide tension

C. Rise in pH

D. Rise in H+ ion

4793. Normal intrapleural pressure during the start of inspiration is _________ mm of Hg?
0

A. -2

B. -5

C. -7

D. 0

4794. The only fixed cell of the connective tissue_______________?
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A. Mast cell

B. Lymphocyte

C. Histiocyte

D. Neutrophils

4795. ESR depends on_______________?
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A. Fibrinogen

B. Viscidity

C. Rouleaux

D. All of the above

4796. The renal blood flow in (in ml/mt) is______________?
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A. 1260

B. 800

C. 1500

D. 250

4797. Prothrombin time is useful for_______________?
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A. For evaluation in a patient taking anticoagulant drugs

B. Detection of clot retraction

C. Platelet count

D. In hemophilia

4798. When a person lies down_______________?
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A. Blood flow to the Apex of lung decrease

B. Cerebral blood flow increase & becomes stable at more than normal

C. Heart rate becomes stable at slightly more than normal

D. There is immediate increase in venous return

4799. The volume of gas in the lungs at the end of normal expiration is____________?
0

A. Residual volume

B. Inspiratory reserve volume

C. Functional residual capacity

D. Expiratory reserve volume

4800. A reliable screening test for platelet function is_______________?
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A. Thrombin

B. PT

C. CT

D. Clot retraction time

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