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Creatinine, Serum/Plasma

Test ID: EGFR
Orderable by Ontario ND
Test
Specimen
Performance / Interpretation
Interface / Setup

Test

Report Includes

Creatinine; Estimated GFR (eGFR)

Specimens

Serum; Plasma (Heparin)

Test Version

3-Sep-2024

Specimen

Specimens

Serum; Plasma (Heparin)

Sample Volume

1 mL

Additional Information

Age and sex must be provided for estimation of GFR (eGFR) from the measured creatinine.

Test Version

3-Sep-2024

Performance / Interpretation

Turnaround Time

1 Day

Results

Name Units Reference Range Conversion Factor
Creatinine umol/L
  • 0 to <15 days: 27 - 77
  • 15 days to < 2 yrs: 9 - 30
  • 2 to < 5 yrs: 17 - 36
  • 5 to < 12 yrs: 26 - 51
  • 12 to < 15 yrs: 38 - 68
  • Female 15 to < 19 yrs: 41 - 70
  • Male 15 to < 19 yrs: 52 - 90
  • Female 19+: 49-90
  • Male 19+: 64-104
The calibration of this spectrophotometric assay is traceable to the isotope dilution-mass spectrometry (IDMS) method for creatinine.
Estimated GFR mL/min/1.73 m2
  • Male and Female: >60
(Estimated GFR is calculated utilizing the new 2021 Chronic Kidney Disease-Epidemiology (CKD-EPI) equation published in 2021 (Inker et al., NEJM 2021) which does not include a race-based modifier.)

Test Version

3-Sep-2024

Interface / Setup

Test Version

3-Sep-2024