Heparinzed syringe, Green top (lithium heparin) vacutainer, capillary tubes (2), or Dark Green (Lithium heparin) microtainer
0.5 mL microtainer or syringe; (2) 250 uL capillary tubes
Cause for rejection:
Clotted, specimen not sent on ice, air bubbles
Daily, 24 hours; STAT
Ion selective electrode direct
Place specimen on ice and deliver to lab immediately.
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