Creatinine, Serum

Test Code
CREA1


Preferred Specimen
1 mL Serum or Plasma ( lithium, heparin)


Instructions
"Separate from cells with Max limit of 2hr from collection.
Testing Frequency: Performed as ordered"


Transport Container
PST, Plasma Separator


Transport Temperature
Refrigerate


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Stability: 24hrs Room Temp; 7days Refrig; 3months Frozen at -20degree


Methodology
Modified Jaffe reaction



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.