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Fill tube(s) to capacity.
Invert tube 8 to 10 times immediately after collection. To preserve cellular viability, collect specimen so it will arrive in the laboratory within 48 hours of collection. Indicate date and time of venipuncture on the tube(s) and on the test request form.
Maintain specimen at room temperature. Do not freeze or refrigerate.
Causes for Rejection
Specimen refrigerated or frozen; clotted specimen; hemolysis; contamination