Hematology MCQs

Hematology MCQs

01. 10 year old boy found that evaluated prevented arresting bleeding after dental extraction. He has normal bleeding time,increased clotting time.what are the possible reasons?

a) Thrombocytophenia
b) Haemophilia
c) Maternal uncles with same disease
d) Defect of clotting cascade
e) Von Willibrand disease

Which of the following decrease platelet aggregation & cause vasodilatation?

Which of the following decrease platelet aggregation & cause vasodilatation? ( select best answer )

a. Prostaglandin E2 (PGE2)
b. Prostaglandin (PGF2α )
c. Thromboxane A2 (TXA2)
d. Prostaglandin D2 (PGD2)
e. Prostacyclin (PGI2 )

Microcytic hypochromic anemia is feature in

3. Microcytic hypochromic anemia is feature in

a. Folic acid deficiency
b. Vitamin B12 deficiency
c. Iron deficiency
d. Thalassemia
e. Spherocytosis

Haematology SEQ

(1). 
A chronic alcoholic was brought to the Anuradhapura teaching hospital with profuse bleeding following a minor cut injury.

His investigations showed the following:
Bleeding time 4 minutes
Clotting time 13 minutes
Prothrombin time 2 minutes
Clot retraction time Normal
What is the possible cause of bleeding in the above patient?
Explain the physiological basis of the above investigation results.