Container/Tube: Light blue-top (3.2% sodium citrate) tube
Specimen Volume: 3 to 5 mL of sodium citrate whole blood, drawn with a 21-gauge or larger needle.
Transport Temperature: Ambient
Collection Instructions: Invert several times to mix blood. Forward promptly at ambient temperature only. Do not spin.
Note: Indicate if patient is taking Plavix®.
<102 seconds with ADP: normal activity
Critical values (automatic call-back): >184 seconds with EPI or >102 seconds with ADP