A CBC specimen is clotted and needs to be redrawn. what is the most likely cause of the clotting?
A. the anticoagulant in the tube was defective
B. the blood and anticoagulant were not mixed sufficiently in the tube
C. the patient has DIC and the blood was clotted before entering the tube
D. the technician drawing the blood waited too long before delivering the blood too the lab
Answer: B. the blood and anticoagulant were not mixed sufficiently in the tube
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