Hematology
- Neutrophil count is high in:
a) Acute bacterial infection ✅
b) Iron deficiency anemia
c) Megaloblastic anemia
- HbA2 is consisting of:
a) 3 ά chains and 2 γ chains
b) 2 ά chains and 2 β chains
c) 2 ά chains and 2 δ chains ✅
d) 2 ά chains and 3 δ chains
e) 3 ά chains and 2 δ chains
- The main (most) Hb found in adults is:
a) Hb A ✅
b) Hb A2
c) Hb F
- Detection of malaria parasite is by:
a) Thick blood film ✅
- Leukocyte that involves in adaptive and acquired immunity:
a) Lymphocyte ✅
b) Neutrophil
c) Monocyte
d) Basophile
e) Eosinophil
- Normal range of leukocytes is:
a) 11 X 10^9
- Reticulocyte is immature:
a) RBC ✅
b) WBC
c) Platelet
- Leukocyte responsible for cellular immunity:
a) T-lymphocyte ✅
b) B-lymphocyte
c) Monocyte
d) Basophile
e) Eosinophil
- Malaria infection is transmitted by:
a) Male Anopheles mosquito
b) Female Anopheles mosquito ✅
- One-stage prothrombin time is used to detect (diagnose) disorders in:
a) Extrinsic coagulation pathway (factors) ✅
b) Intrinsic coagulation pathway (factors)
- Thrombin time is:
a) Extrinsic coagulation pathway (factors)
b) Intrinsic coagulation pathway (factors)
c) The conversion of prothrombin to fibrinogen in addition to thrombin ✅
- The most severe (serious) malaria infection is caused by:
a) Plasmodium Falciparum ✅
b) Plasmodium Malaria
c) Plasmodium Ovale
d) Plasmodium Vivax
e) All of the above
- Leukocyte responsible for response to parasitic and allergic infections:
a) Lymphocyte
b) Neutrophil
c) Monocyte
d) Basophile
e) Eosinophil ✅
- With Romanowsky stain, 2-5 lobes and give violet or pinkish granules:
a) Neutrophil ✅
b) Eosinophil
c) Basophile
d) Monocyte
- Lymphocyte is elevated in:
a) Viral infection ✅
b) Acute bacterial infection
c) Iron deficiency anemia
d) Megaloblastic anemia
e) None of the above
- Thrombin time measures:
a) Convert fibrinogen to fibrin with activation of thrombin ✅
- In the presence of clotting defects, one of these is not measured:
a) Leukocyte count ✅
- Bleeding time test detects abnormalities in:
a) Defects in vessels and platelets ✅
- S hemoglobin is the same defect as thalassemia, but the difference is:
a) Long β chain
b) Glutamic acid on β chain is substituted with valine ✅
c) Glutamic acid on α chain is substituted with valine
- Hormone that causes replication of RBCs:
a) Erythropoietin ✅
- Which white blood cell produces immunoglobulin:
a) Lymphocyte ✅
b) Neutrophil
c) Basophile
d) Monocyte
e) Eosinophil
- Neutrophil is the most common white blood cell present in blood, and the percentage of presence is:
a) 90%
b) 15%
c) 75% ✅
- Normal range of erythrocytes:
a) 4.5-6.5 X 10^9 ✅
- One of these cells is the largest leukocyte cell:
a) Neutrophil
b) Basophile
c) Monocyte ✅
d) Lymphocyte
e) Eosinophil
- Malaria chizonts are present in:
a) Reticulo-endothelial
b) Leukocytes
c) RBCs ✅
- Unidirectional movement of WBCs directly to its target is:
a) Sliding
b) Phagocytosis
c) Chemotaxis ✅
- Malaria does not grow in:
a) EDTA blood ✅
b) Heparinized blood
c) Plasma
- Hemophilia man married to a normal woman, the incidence of his children is:
a) Carrier male
b) Diseased female
c) Carrier female ✅
- IVY method of bleeding time:
a) For vascular and platelet abnormalities (function) ✅
- Neutrophil is most abundant in WBCs:
a) True ✅
- HbA (Adult hemoglobin) for adults, dominant in adults:
a) True ✅
- HbF (Infant hemoglobin) fetal hemoglobin:
a) True ✅
- Neutrophil is first increased in bacterial infections:
a) True ✅
- Prolonged application of tourniquet:
a) Venous stasis increases calcium level ✅
- Best time for collection of blood for malaria:
a) Before and after paroxysm
b) Shortly after paroxysm
c) Later paroxysm
d) Just before paroxysm ✅
- In folic acid deficiency, what happens to RBCs:
a) Enlarged RBCs (Megaloblastic anemia) = Macrocytic ✅
b) Crenated RBCs
c) Hemolyzed RBCs
- In iron deficiency anemia:
a) RBCs are smaller than normal = Microcytic ✅
- The malarial sporozoite in humans invades:
a) White blood cells
b) RBCs ✅
c) Reticulo-endothelial cells
d) All of the above
- The defect of thalassemia occurs in:
a) Cycle of heme
b) Globin chain ✅
- All cells are nucleated EXCEPT:
a) Lymphocytes
b) Monocytes
c) RBCs ✅
d) Neutrophils
- Romanowsky stain consists of:
a) Eosin + Alkaline methylene blue ✅
b) Eosin only
c) Methylene blue only
d) Indian Ink
