Phosphate, Random Urine with Creatinine

Test Code
1696


CPT Codes
84105, 82570

Preferred Specimen
10 mL random urine


Minimum Volume
2 mL


Other Acceptable Specimens
Unpreserved urine collected in urinalysis transport tube (yellow-top, blue fill line, preservative tube) • Preserved urine with 6N HCl acid submitted in a plastic urine container


Instructions
Adjust pH to <3.0 with 6N HCl prior to aliquoting for phosphate testing


Transport Container
Plastic urine container


Transport Temperature
Preserved: Room temperature
Unpreserved: Refrigerated (cold packs)


Specimen Stability
Preserved
Room temperature: 6 months
Refrigerated: 6 months
Frozen: 6 months

Unpreserved
Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 28 days


Methodology
Spectrophotometry (SP)

Setup Schedule
Daily


Reference Range
See Laboratory Report


Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.