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

Question 1

A patient's CBC reveals an MCV of 110 fL and oval macrocytes on the peripheral smear. Which nutrient deficiency is most likely responsible?

Accepted Answer

Vitamin B12 or folate

Answer

Iron

Answer

Vitamin C

Answer

Zinc

Question 2

Which coagulation factor is measured exclusively by the prothrombin time (PT) and not the activated partial thromboplastin time (aPTT)?

Accepted Answer

Factor VII

Answer

Factor X

Answer

Factor V

Answer

Factor II

Question 3

A D-dimer test is most useful in ruling out which condition?

Accepted Answer

Deep vein thrombosis

Answer

Hemophilia A

Answer

Iron deficiency anemia

Answer

Polycythemia vera

Question 4

What is the expected finding on a peripheral blood smear in a patient with disseminated intravascular coagulation (DIC)?

Accepted Answer

Schistocytes

Answer

Spherocytes

Answer

Target cells

Answer

Howell-Jolly bodies

Question 5

Which anticoagulant is preferred for routine coagulation testing such as PT and aPTT?

Accepted Answer

3.2% sodium citrate

Answer

EDTA

Answer

Sodium heparin

Answer

Potassium oxalate

Question 6

A prolonged bleeding time with a normal platelet count and normal PT/aPTT most likely suggests which condition?

Accepted Answer

von Willebrand disease

Answer

Factor V Leiden

Answer

Hemophilia B

Answer

Antithrombin III deficiency