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Why do many facilities require drawing a discard tube before collecting a sodium citrate tube?

When a tube containing a thixotropic separator gel and blood is centrifuged, the gel moves to the

The antiglycolytic agent in a gray-stoppered blood collection tube is:

  You are new to the job and are given a quiz on your first day. Your supervisor shows you a picture of this object. What is it used for?

A gray-stoppered evacuated tube prevents glycolysis and coagulation. What additives does this tube contain? (Choose all that apply)

Which of the following statements are true regarding butterfly needle sets? (Choose all that apply)

Increasing blood flow to the veins can be accomplished by (select all that apply

If all types of evacuated tubes are needed for a particular blood collection, the potassium oxalate tube would be which number in the order of draw?

Handheld automated equipment has been developed for many applications, including blood coagulation and blood gases. Which is another measurement that handheld automated equipment can detect?

A patient comes into the lab to have a platelet function test done. What evacuated blood collection tube would you use for this test?