Test directory: Creatine, Serum or Plasma

Ordering Code 5139
Test Name Creatine, Serum or Plasma
Preferred Specimen Serum
Preferred Container SST (Gold)
Other Specimen/Container Plasma in EDTA, K2 (Lavender),
Plasma in Lithium Heparin (Green),
Plasma in Sodium Heparin (Green),
Serum in Plain (Red)
Optimum Volume 1 mL
Handling Instructions Separate serum or plasma from cells ASAP or within 2 hours of collection,
Transport Requirements Oahu: Frozen
Airline: Frozen
Specimen Stability Ambient: Not Stable
Refrigerated: 7 Days
Frozen: 2 Weeks
Rejection Criteria Specimens exposed to more than one freeze/thaw cycle
Avail. Stat NO
Analytic Time Up to 13 Days
Methodology Liquid Chromatography/Tandem Mass Spectrometry
Reference Lab  ARUP Laboratories

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Creatine ALL See report.