Question

blood in specimen tubes that contain an anticoagulant must be inverted immediately ___ times. gentle inversion prevents hemolysis
a 4 to 5
b 5 to 6
c at least 6 to 7
d 8 to 10

Explanation:

Blood specimen tubes with anticoagulant need immediate inversion. Standard practice is 8 - 10 times for proper mixing and hemolysis prevention.

Answer:

D. 8 to 10