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Potassium, RBC
MessageTesting must be arranged with the Lab Specimen Processing before collection. Specimen must be sent to the lab STAT and arrive in lab before 3: 00 PM Monday-Thursday. Collect 1 Dark Green NaHep and 1 Lavender EDTA tubeBoth samples must only be collected Mon-Thurs and must be received together for testing.
Test Code
LAB13717 KRBC
Alias/See Also
KRBC
CPT Codes
84132
Includes
@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@
Instructions
Processing Instructions (Lab use only): Lab Specimen Processing Team: Test requires Quest Direct Ship. Follow Direct Ship procedure for sending out to Quest, do not send out with routine specimens.Both samples must only be collected Mon-Thurs and must be received together for testing.Send original tubes. Do not aliquot. Minimum Testing Volume: 1.5 mL NaHep whole blood1.5 mL EDTA whole blood Transport Temperature: Ambient Stability: Whole blood(green-top tube)Ambient: 48 hoursRefrigerated : 48 hoursFrozen: N/A Whole blood(lavender-top tube)Ambient: 48 hoursRefrigerated : 48 hoursFrozen: N/A Causes for Rejection: Received frozenHemolyzed samples
Report Available
7-Days
Clinical Significance
1230170654
Last Updated: May 18, 2026