Normal prothrombin time is____________?
Correct answer: B. 10-20 sec
- A. 5-7 sec
- B. 10-20 sec
- C. 30 sec
- D. 1 minConsult Online Doctors
Explanation
Prothrombin time is normally about 11–14 seconds, although laboratory reference ranges may extend approximately from 10 to 15 or 20 seconds. The other choices are clearly too short or too long.
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