Specimens Are Received from the Emergency Room for CBC, PT

question 24

Multiple Choice

Specimens are received from the emergency room for CBC, PT, PTT, and Chem panel. Coag results are PT - 7.0 sec (ref range: 9.0-11.2 sec) , PTT - 18.9 sec (ref range: 26.0-32.0 sec) . What could explain these results?

• A) The patient just runs low
• B) The specimen is lipemic
• C) The coag tube was drawn after the SST tube
• D) The coag tube was underfilled

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