ANTITHROMBIN III ACTIVITY
Name: ANTITHROMBIN III ACTIVITY
Mnemonic: AT3
Container: PLASTIC SCREW-CAP VIAL
Handling: 1 ML FROZEN PLASMA COLLECTED IN 3.2% SODIUM CITRATE
(LIGHT BLUE-TOP) TUBE.
INSTRUCTIONS:
PLATELET POOR PLASMA: CENTRIFUGE LIGHT BLUE-TOP 15 MINUTES
AT APPROX. 1500 G WITHIN 60 MINUTES OF COLLECTION. USING A
PLASTIC PIPETTE, REMOVE PLASMA, TAKING CARE TO AVOID THE
WBC/PLATELET BUFFY LAYER AND PLACE INTO A PLASTIC VIAL.
CENTRIFUGE A SECOND TIME AND TRANSFER PLATELET-POOR PLASMA
INTO A NEW PLASTIC VIAL. PLASMA MUST BE FREE OF PLATELETS
(<10,000/MCL). FREEZE IMMEDIATELY AND SHIP ON DRY-ICE., 0.5 ML IF A SINGLE TEST, FROZEN
Methodology: CHROMOGENIC SUBSTRATE
Referred Lab: Quest
CPT: 85300
Department: Send-Out
Performed: Monday - Saturday