Potassium, RBC

What it measures

• Potassium, RBCLOINC 2824-1

Specimen

Specimen

4 mL whole blood collected in a sodium heparin or lithium heparin (green-top) tube and 4 mL whole blood collected in an EDTA (lavender-top) tube

Minimum volume

1.5 mL

Container

Sodium heparin or lithium (green-top) tube and EDTA (lavender top) tube

Temperature

Room temperature

Both samples must only be collected Mon-Thurs and must be received together for testing. Clients: Contact the lab prior to ordering for special logistics arrangements. PSC: Follow Short Stability Protocol

Turnaround

Set up: Tues-Sat

Billing

CPT 84132