Sign in →

Test Code MISC1WARDEKRBC Potassium RBC

Department

SEND OUTS

Reference Lab Test Number

KRBC

Collection Requirements

Draw blood in a green sodium or lithium heparin tube. Send 4.0 mL whole blood refrigerated in a screw-capped plastic vial. Both samples must only be collected Mon-Thurs and must be received together for testing.

Refer To

Warde Medical Laboratory

Primary Collection Container

Green (Sodium Heparin) and Lavender 6 mL (K3EDTA)

Alternate Collection Container

Green PST (Lithium Heparin)

Transport

Whole blood refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Send 4.0 mL whole blood in screw capped vial or in original collection tube and whole blood collected in Lavender EDTA tube. Both samples must only be collected Mon-Thurs and must be received together for testing.

Stability

Sodium Heparin

Ambient: 72 Hours

Refrigerated: 72 hours

Frozen: Unacceptable

Lavender EDTA

Ambient: 48 hours

Refrigerated: 48 hours

Frozen: Unacceptable

Minimum Testing Volume

1.5 mL

Reference Range

55-85 mmol/L

Methodology

Ion Selective Electrod

Performed

Wednesday and Friday

Reported

5-7 days

CPT Codes

-84132