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- 1. Multiple Choice
What is the purpose of methemoglobin reductase in RBCs?
To keep iron in ferrous state
To synthesize 2,3 DPG
To maintain alpha and beta chains
To maintain an anaerobic pathway of glycolysis
- 2. Multiple Choice
What is the purpose of Rapoport leubering shunt in RBCs?
To keep iron in ferrous state
To synthesize 2,3 DPG
To maintain alpha and beta chains
To maintain an anaerobic pathway of glycolysis
- 3. Multiple Choice
What product is formed when ferrous iron of normal hemoglobin is oxidized to the ferric state?
Methemoglobin
Carboxyhemoglobin
Cyanmethemoglobin
Sulfhemoglobin
- 4. Multiple Choice
Which of the following hemoglobins could be present in normal adult?
Hb A1
Hb A2
HbF
All of the choices
- 5. Multiple Choice
Which of the following hemoglobins is the most abundant among newborns?
Hb A1
Hb A2
HbF
All of the choices
- 6. Multiple Choice
In the tube solubility test for Hemoglobin S the reagent responsible for the reduction of the hemoglobin molecule is:
Potassium phosphate
Sodium dithionate
Saponin
Drabkin's reagent
- 7. Multiple Choice
Which of the following hemoglobin is insoluble under lowered oxygen tension?
HbA1
HbS
HbF
HbC
- 8. Multiple Choice
How would you describe the tonicity of WBC diluents in WBC counting?
Isotonic
Hypertonic
Hypotonic
Acidic
- 9. Multiple Choice
Hematocrit is a mesure of:
RBC sedimentation rate
Total RBC mass
Total RBC
Packed RBC volume
- 10. Multiple Choice
What is the normal value of reticulocytes in a normal adult?
1-1.5%
5%
3-5%
It absent in the peripheral circulation in normal states
- 11. Multiple Choice
What is the normal value of Myeloid: Erythroid ratio
4:1
1:4
1:9
9:1
- 12. Multiple Choice
What is the normal value of of blood: citrate anticoagulant?
4:1
1:4
1:9
9:1
- 13. Multiple Choice
Which of the following cells increase in cases of immediate hypersensitivity reaction?
Neutrophil
Eosinophil
Basophil
Mast cells
- 14. Multiple Choice
Which of the following cells contains major basic protein?
Neutrophil
Eosinophil
Basophil
Mast cells
- 15. Multiple Choice
What is the expected blood picture when the MCV=95fl and MCHC=35%
normocytic normochromic
macrocytic normochromic
microcytic hypochromic
None of the choices
- 16. Multiple Choice
What is the expected blood picture when the MCV=110fl and MCHC=34%
normocytic normochromic
macrocytic normochromic
microcytic hypochromic
None of the choices
- 17. Multiple Choice
What is the normal WBCs per uL in the body?
5,000-10,000
125,000-150,000
200,000-400,000
500,000-1,000,000
- 18. Multiple Choice
What is the normal thrombocytes per uL in the body?
5,000-10,000
125,000-150,000
200,000-400,000
500,000-1,000,000
- 19. Multiple Choice
Polycythemia vera is associated with
Pancytopenia
Pancytosis
Bone marrow failure
Leukemia
- 20. Multiple Choice
The nucleus of immature blast cells primarily consists of:
RNA
DNA
golgi body
ribosomes
- 21. Multiple Choice
In cases of increased 2, 3 DPG, what would happen to the oxygen dissociation curve
Shift to the left; deliver more oxygen
Shift to the right; deliver more oxygen
Shift to the left; deliver less oxygen
Shift to the right; deliver less oxygen
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