Medical Laboratory Technician Exam Medical Laboratory Technician Hematology and Coagulation Questions and Answers 2

Question 1

A patient's blood smear shows hypersegmented neutrophils with macro-ovalocytes. Which vitamin deficiency is most likely responsible for these findings?

Accepted Answer

Vitamin B12 or folate deficiency

Answer

Iron deficiency

Answer

Vitamin C deficiency

Answer

Vitamin K deficiency

Question 2

Which coagulation pathway is assessed by the activated partial thromboplastin time (aPTT)?

Accepted Answer

Intrinsic and common pathways

Answer

Extrinsic and common pathways

Answer

Intrinsic pathway only

Answer

Platelet adhesion pathway

Question 3

What is the expected reticulocyte count pattern in a patient with aplastic anemia?

Accepted Answer

Decreased reticulocyte count

Answer

Increased reticulocyte count

Answer

Normal reticulocyte count

Answer

Cyclically fluctuating reticulocyte count

Question 4

A prolonged thrombin time (TT) that corrects with a mixing study most likely indicates which condition?

Accepted Answer

Factor deficiency

Answer

Heparin contamination

Answer

Fibrin degradation products

Answer

Dysfibrinogenemia

Question 5

Which hemoglobin electrophoresis pattern is characteristic of sickle cell trait (HbAS)?

Accepted Answer

HbA greater than HbS with normal HbA2

Answer

HbS greater than HbA with elevated HbF

Answer

HbS only with no HbA

Answer

HbA only with elevated HbA2

Question 6

What does a positive D-dimer result indicate in the context of coagulation testing?

Accepted Answer

Active fibrinolysis of cross-linked fibrin

Answer

Primary fibrinogenolysis

Answer

Platelet activation disorder

Answer

Vitamin K deficiency

A patient's blood smear shows hypersegmented neutrophils with macro-ovalocytes.Which vitamin deficiency is most likely responsible for these findings?

A patient's blood smear shows hypersegmented neutrophils with macro-ovalocytes.
Which vitamin deficiency is most likely responsible for these findings?