Three 3 mL whole blood in lavender (EDTA) top tube or two 5 mL whole blood in pink (K2EDTA) top tube.

7 mL whole blood ambient (Min: 5 mL).

* Collection Instructions *

• Do not refrigerate or freeze.
• Specimens submitted in yellow (ACD) top tube will no longer be accepted because of the high incidence of platelet clumping associated with this anticoagulant.
• If the platelet count is less than 20,000/ccm, submit 7-10 mL of whole blood.

Pediatric minimum volume: The minimum volue is platelet count dependent. If possible, submit at least 1 mL EDTA blood.

Ambient: 6 days

Refrigerated: Unacceptable

Frozen: Unacceptable

• Gross hemolysis
• Yellow (ACD) top tubes