A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Potassium, RBC
Test Code3382
CPT Codes
84132<br><strong>This test is not available for New York patient testing.</strong>
Preferred 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
4 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
1.5 mL
Instructions
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
Clients: Contact the lab prior to ordering for special logistics arrangements.
PSC: Follow Short Stability Protocol
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 48 hours
Refrigerated: 48 hours
Frozen: Unacceptable
Refrigerated: 48 hours
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received frozen • Hemolyzed samples
Methodology
Ion Selective Electrode (ISE)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Tues-Sat; Report available: 3-5 days
Reference Range
90-111 mmol/L
Clinical Significance
Use: Potassium is nearly all maintained within cells. RBC Potassium may be useful in assessing potassium redistribution.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |