Creatinine

Mint Green Plasma Separator Tube

Tube Type

Includes: Estimated Glomerular Filtration Rate

Test ID LAB383
EPIC ORDER CREATININE
CPT Code(s) 82565
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station Routine 30; STAT 888
Specimen Routine: 1 mL blood/Li Heparin plasma separator tube / Also acceptable serum (Gold SST / Red Top Tube)
Micro: 200 µL blood/mint green top bullet/gold top/red top
Stability


Unspun
6 hours
Spun/Separated,
Room Temp:
8 hours
Spun/Separated,
Refrigerated:
2 days
Spun/Separated,
Frozen:
30 days
Availability 24 Hours/Day
Turnaround Time STAT 1 hr., Routine 2 hrs.
Reference Range Normal:
Creatinine
Age Range (mg/dL)
Day 1 0.42-0.92
Day 2 0.36-0.78
Day 3 0.33-0.70
Day 4 0.31-0.66
Day 5 0.28-0.62
Day 6 0.27-0.60
Day 7 0.26-0.58
Week 2 0.24-0.52
Week 3 0.21-0.49
Week 4 0.19-0.42
Month 2 0.17-0.37
Month 3 0.16-0.34
Month 4-9 0.16-0.34
Month 10-2 years 0.17-0.36
2-5 years 0.20-0.40
5-12 years 0.30-0.60
12-15 years 0.40-0.80
Female Male
15-18 years 0.50-0.80 0.60-1.00
>18 years 0.60-0.80 0.60-1.10
eGFR Range (mL/min/1.73m2)
≥18 years >60
Reference Ranges effective 7/13/2021
Comments

Creatinine testing is traceable to IDMS.

Estimated glomerular filtration rate (eGFR) is calculated with the CKD-EPI 2021 equation using measured plasma or serum creatinine value, age, and sex for adult patients (≥18 years) in accordance with the National Kidney Foundation and American Society of Nephrology Task Force recommendations.

Upper Reportable Limit of eGFR >90mL/min/1.73m2

eGFR Calculator

Please see Core Lab Memo #183 for information.

Reviewed by Christopher Parker on December 06, 2021

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514