Which of the following is an acceptable sample for testing on a photo-optical clot-detecting instrument?

Question

Quizplus · Accepted Answer

Plasma should be collected at a 9:1 ratio of blood to anticoagulant (3.2% sodium citrate).Lipemia and hemolysis are possible interfering substances when using an instrument that uses the photo-optical principle for end-point detection.Serum cannot be used for coagulation testing because the sample has already clotted,with resultant loss of several coagulation proteins.

Which of the Following Is an Acceptable Sample for Testing