mcq physiology B.D.S blood

mcqs for the topic blood subject physiology

1. Erythrocytes content in the newborn organism equals approximately to
answer
4.0

5.0

3.7

4.5

5.9(answer)

BLOOD

1. Erythrocytes content in the newborn organism equals approximately to...
A. 4.0
B. 5.0
C. 3.7
D. 4.5
E. 5.9

2. Minimal erythrocytes hemolysis occurs in the following solution ...
A. 0.52- 0.48% NaCl
B. 0.46- 0.42% NaCl
C. 0.40- 0.36% NaCl
D. 0.34- 0.32% NaCl
Е. 0.30- 0.28% NaCl

3. ESR is considered to be the measure of following blood physical-chemical property ...
А. Stability of colloid solution
В. Blood suspensial properties
С. Volume of blood cellular part
D. Blood viscosity
E. Plasma volume

4. In a patient receiving 24 units of blood over 2 hours, the complication most likely to be seen would be:

A. Hypercalcaemia

B. Increased oxygen uptake in the lungs

C. Coagulopathy

D. Hypokalaemia

E. Hypersensitivity



5. Problems of massive transfusion most commonly include:

A. Metabolic alkalosis

B. Hyperkalaemia
C. Coagulopathy due to hypocalcaemia

D. 2-3 DPG toxicity

E. ABO incapability



6. Erythropoietin is a glycoprotein which:

A. Stimulates red and white cell production

B. Is broken down in the kidney

C. Has a half life of days

D. Levels inversely proportional to haematocrit

E. Polypeptide B glycoprotein


7. Immunoglobulin G (IgG) has:

A. 4 heavy chains

B. 4 light chains

C. 2 heavy & 2 light chains

D. Variable heavy & light chains

E. 1 heavy and 1 light chain





8. To prevent blood loss after a tissue injury, blood vessels first

A) Form a platelet plug
B) Form a clot
C) Initiate the coagulation cascade
D) Vaso constriction

E) Vasodilation


9. In a normal blood sample, which of the following cells will be the most abundant?
A) Neutrophils
B) Eosinophils
C) Monocytes
D) Lymphocytes

E) leukocyte


10. Which blood component plays the largest role in maintaining the osmotic pressure of blood?

A) Albumin

B) Carbon Dioxide

C) White Blood Cells

D) Globulins

E) Red Blood Cell


11. Erythopetin secreted mainly from

A) Kidney

B) Liver

C) Pancreas

D) Stomach

E) Gall Bladder


12. Breakdown of erythrocytes in the body
A. Occurs when they are 6–8 weeks old.
B. Takes place in the capillary system.
C. Yields iron, most of which is excreted in the urine.
D. Yields bilirubin which is carried by plasma protein to the liver.

E.does not take place


13. Which of the following treatments would prevent a transfusion reaction?

A. Administration of plasma free blood

B.Administration of washed erythrocytes

C.Treatment with immunoglobulins.

D.Treatment with mannitol.

E.Proper cross-matching of donor red cells with recipient plasma


14. What happens following the presentation of an antigen by a macrophage?

A.Direct generation of antibodies

B.Activation of cytotoxic T cells

C.Increase in phagocytosis

D.Activation of helper T cells.

E.Activation of platelet




15. Prothrombin level falls in the blood due to lack of

A.Vitamin B12

B.Vitamin K

C.Phospholipids

D.Platelets

E.Sodium


16. Endothelial cells synthesise

A.fibrinogen

B.Factor 8

C.Factor 10

D.Factor 12

E.Factor7


17.The universal donors are people with

A. AB+ve Blood group

B. A+ve Blood group

C. B+ve Blood group

D. O+ve Blood group

E. O- ve Blood group




18.The vitamin K dependent clotting factors are :

A.2, 7,9,10

B.1, 7,10

C.7, 9,10

D.7, 10

E.2,7