What is the recommended action prior to centrifuging blood samples?

Inverting the tubes slowly before centrifuging blood samples is essential to ensure proper mixing of the anticoagulant with the blood. This helps prevent clot formation and ensures that the sample remains homogenous. When blood is collected in a tube with an anticoagulant, it is important to mix it gently to avoid damaging the cells or causing hemolysis. By inverting the tubes, you allow the anticoagulant to fully mix with the blood without causing spillage or excessive agitation.

Storing blood samples at room temperature or in a refrigerator is not always appropriate depending on the tests being performed, as some tests may require specific temperature controls to maintain sample integrity. Shaking the tubes vigorously is not recommended because it can lead to the destruction of blood cells or improper mixing, resulting in inaccurate lab results.