Test Code N.CREAT_ISTAT Bedside Creatinine (iSTAT)
Additional Codes
iCRE
Methodology
iSTAT
Specimen Requirements
Whole Blood
Container: Lithium Heparin (GREEN)
Alternate: Sodium Heparin
Specimen Collection: Venous whole blood specimen collected in lithium heparin or sodium heparin collection container. Tubes must be filled to minimum fill line for accurate measurement and testing must be complete within thirty minutes of collection. If time exceeds this limit, order (CREAT.1).
Processing/Testing: Specimen should be transported to the laboratory ASAP and run on unspun whole blood within thirty minutes.
Day(s) Test Set Up
Daily
Test Classification and CPT Coding
82565
Reference Values
0-3 days: 0.21-0.99mg/dL
3 days-2yr: 0.21-0.50mg/dL
2yr- 4yr: 0.21-0.60
4yr-8yr: 0.21-0.70
18 years and above:
Females: 0.44-1.00
Males: 0.61-1.24