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Test ID: EGFR

Creatinine, Serum/Plasma

Orderable by Ontario ND

Test Overview

Result Included

Creatinine; Estimated GFR (eGFR)

Specimen

Specimen Type

Serum
Plasma (Heparin)

Volume

Sample Volume

1 mL

Collection & Handling

Additional Information

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

Performance & Interpretation

Turnaround Time

1 Day

Results

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

Comment

The calibration of this spectrophotometric assay is traceable to the isotope dilution-mass spectrometry (IDMS) method for creatinine.
Estimated GFR

mL/min/1.73 m<sup>2</sup>

Male and Female: >60

Comment

(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.)

Referral Location

Canada

Test Version

Last Updated

2024-09-03