PHYSIOLOGY- Blood MCQs – Dentstudy.co

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#1. The specific gravity of whole blood varies from:

1.025 to 1.030

1.005 to 1.010

1.055 to 1.060

1.015 to 1.020

#2. Erythrocyte in newborn is:

5-6 mm per hour

3-4 mm per hour

0-2.0 mm per hour

2-3 mm per hour

#3. The deficiency of factors V, VII and leads to:

Haemophilia B

Haemophilia C

Haemophilia A

Pseudohaemophilia

#4. In platelet serotonin is secreted from:

Alpha granules

Syndesmosomes

Very dense granules

Glycogen granules

#5. The normal range of saturation index is:

0.1 to 0.3

0.2 to 0.5

0.7 to 0.8

0.9 to 1.1

#6. The mean corpuscular thickness is:

0.5 to 1 μm

2.1 to 2.2 μm

3 to 4 μm

4 to 5 μm

#7. The ratio of WBC : RBC is

1: 700

1: 17

1: 70

1: 7000

#8. Vitamin K deficiency leads to:

Decrease synthesis of factor Xl and factor XII

Decrease synthesis of factor I and factor II

Decrease synthesis of factor VII and prothrombin

None of the above

#9. An approximate prothrombin time is:

5 to 10 seconds

11 to 16 seconds

1 to 2 seconds

2 to 6 seconds

#10. The pH of blood varies between:

7.36 and 7.45

7.26 and 7.36

7.45 and 7.60

7.15 and 7.25

#11. The substance prepared from leucocytes, which are necessary for tissue cell growth in culture, are:

Globulin

Albumin

Seromucoid

Trephines

#12. The paternity test for confirmation which is prominently used in medicolegal cases are:

M and N factors

ABO blood group

Rh blood group system

None of the above

#13. Routine blood storage is ……. for stored packed red blood cells.

42 days

20 days

4 days

2 days

#14. Enormous exposure to X-ray or y-ray can lead to

Iron deficiency anaemia

Aplastic anaemia

Megaloblastic anaemia

Thalassaemia

#15. The osmotic fragility of red blood cells in healthy indivi- dual:

Starts at 0.48%, ends at 0.33%

Starts at 0.65%, ends at 0.48%

Starts at 0.35%, ends at 0.20%

Starts at 0.10%, ends at 0.15%

#16. The albumin-globulin ratio ordinarily is:

2.5: 0.5

1.5:1

4: 3

5: 2.5

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