Screening test to evaluate kidney function.
Within 24 hours
Plasma separator tube or serum separator tube.
Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)
Specimens obtained through catheters used to infuse hyperalimentation fluid. Specimens with potassium oxalate/sodium fluoride, citrate, or EDTA as anticoagulants.
After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: 3 months
By report (reports may vary based on instrumentation)
Assay interference (negative) may be observed when high concentrations of N-acetylcysteine (NAC) are present. Negative interference has also been reported with NAPQI (an acetaminophen metabolite) but only with concentrations at or above those expected during acetaminophen overdose.
|Component Test Code*||Component Chart Name||LOINC|
|0020025||Creatinine, Serum or Plasma||2160-0|
- Blood Creatinine
- Serum Creatinine