Test Details
Mnemonic
KRBC
Ordering Code
3718600
CPT-4 Code(s)
84132
Specimen Information
Collect
Green sodium heparin AND Lavender EDTA
Specimen Preparation
Send 4.0 mL whole blood collected in a green sodium heparin tube AND 4.0 mL whole
blood collected in Lavender EDTA tube. Both samples must be received for testing.
blood collected in Lavender EDTA tube. Both samples must be received for testing.
Alternate Specimen
Whole blood: Lithium heparin
Minimum Volume
1.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Hemolyzed or frozen specimens
Stability
Green sodium or lithium heparin
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Lavender EDTA
Room temperature: 48 hours
Refrigerated: 48 hours
Frozen: Unacceptable
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Lavender EDTA
Room temperature: 48 hours
Refrigerated: 48 hours
Frozen: Unacceptable
Methodology
Ion Selective Electrode
Reference Range
90 - 111 mmol/L
Performing Laboratory
Quest SJC