Question 1

What does a prolonged prothrombin time (PT) indicate?

Accepted Answer

Possible deficiency in clotting factors II, V, VII, or X

Answer

Low platelet count

Answer

Normal coagulation function

Answer

Increased fibrinogen levels

Question 2

Which of the following factors is NOT typically assessed by the prothrombin time test?

Accepted Answer

Factor VIII

Answer

Factor X

Answer

Factor VII

Answer

Factor II

Question 3

What is the primary clinical use of prothrombin time (PT)?

Accepted Answer

Monitoring anticoagulant therapy with warfarin

Answer

Diagnosing hemophilia A

Answer

Evaluating thrombotic disorders

Answer

Assessing platelet function

Question 4

What is the normal range for prothrombin time (PT) in seconds for a healthy adult?

Accepted Answer

11 to 13.5 seconds

Answer

15 to 20 seconds

Answer

8 to 10 seconds

Answer

14 to 18 seconds

Question 5

Which vitamin deficiency can lead to a prolonged prothrombin time?

Accepted Answer

Vitamin K deficiency

Answer

Vitamin C deficiency

Answer

Vitamin B12 deficiency

Answer

Folic acid deficiency

Question 6

What test is often used in conjunction with prothrombin time (PT) to assess coagulation status?

Accepted Answer

Activated partial thromboplastin time (aPTT)

Answer

Complete blood count (CBC)

Answer

Electrolyte panel

Answer

Blood glucose level

Question 7

What effect does liver disease have on prothrombin time (PT)?

Accepted Answer

It can lead to a prolonged PT

Answer

It shortens PT

Answer

It normalizes PT

Answer

It has no effect

Question 8

Which condition is most commonly associated with an elevated prothrombin time (PT)?

Accepted Answer

Vitamin K deficiency

Answer

Hyperlipidemia

Answer

Hypertension

Answer

Dehydration

Question 9

What medication commonly requires regular monitoring of prothrombin time (PT)?

Accepted Answer

Warfarin

Answer

Clopidogrel

Answer

Heparin

Answer

Aspirin

Question 10

In what way can prothrombin time (PT) be expressed to standardize results across different laboratories?

Accepted Answer

International Normalized Ratio (INR)

Answer

Prothrombin Activity Percentage (PAP)

Answer

Clotting Factor Level (CFL)

Answer

Activated Partial Thromboplastin Time (aPTT)

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