Heparinzed syringe, Green top (lithium heparin) vacutainer, capillary tubes (2), or Dark Green (Lithium heparin) microtainer
0.5 mL microtainer or syringe; (2) 125 uL capillary tubes; If collected in a microtainer, it must be a separate tube with no gel separator
Cause for rejection:
Clotted, air bubbles
Daily, 24 hours; STAT
Ion selective electrode direct
Deliver immediately to laboratory at room temperature.
If specimen is drawn at an off-site location, call STAT courier to deliver specimen to laboratory. Specimen is only stable for 1 hour after collection.
Reference range available on patient report