Palko's Medical Laboratory Procedures 3rd Edition by Danielle Wilken, Phyllis Cox

Exercise 35

Choose the best answer for the following questions.

Normal values of prothombin time (PT) on a patient NOT on anticoagulant therapy is:

a. 11–13 seconds

b. 12–14 seconds

c. 14–16 seconds

d. 18–20 seconds