Which of the following is an acceptable sample for a prothrombin time (PT) test?
A) One that was collected 22 hours before testing and stored at room temperature
B) One with a very small clot that was easily removed
C) 3.2% Sodium citrate blood sample immediately collected following a serum separator tube
D) Blood anticoagulated with heparin and brought to the laboratory within 1 hour
Correct Answer:
Verified
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