Heparinized syringe, Green top (lithium heparin) vacutainer, capillary tubes (2), dark green 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
Direct measurement using electrodes
Place specimen on ice and deliver to lab immediately.
If specimen drawn off-site from Mahoning Valley lab, call stat courier to deliver to laboratory. Specimen is only stable for 1 hour.
Reference range: 96-108 mEq/L