Glomerular Filtration Rate, Estimated
0020725
 
Ordering Recommendation
Mnemonic
GFRE
Methodology
Quantitative Enzymatic
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Plasma separator tube or serum separator tube. Also acceptable: Lavender (EDTA).  
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Specimens obtained through catheters used to infuse hyperalimentation fluid. Specimens collected with potassium oxalate/sodium fluoride or sodium citrate.  
Remarks
 
Stability
After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: 3 months  
Reference Interval
Creatinine
Age Male Female
0-​30 days 0.50-​1.20 mg/dL 0.50-​0.90 mg/dL
31-​364 days 0.40-​0.70 mg/dL 0.40-​0.60 mg/dL
1-​3 years 0.40-​0.70 mg/dL 0.40-​0.70 mg/dL
4-​6 years 0.50-​0.80 mg/dL 0.50-​0.80 mg/dL
7-​9 years 0.30-​0.60 mg/dL 0.30-​0.70 mg/dL
10-​11 years 0.30-​0.70 mg/dL 0.40-​0.80 mg/dL
12-​13 years 0.40-​0.80 mg/dL 0.40-​0.80 mg/dL
14-​15 years 0.40-​1.10 mg/dL 0.30-​0.90 mg/dL
16-​18 years 0.60-​1.20 mg/dL 0.50-​1.00 mg/dL
19 years and older 0.40-​1.20 mg/dL 0.40-​1.20 mg/dL
Calculation By report
Interpretive Data
To estimate the glomerular filtration rate for African Americans, multiply the result provided by 1.21. The equation used to estimate the glomerular filtration rate has only been validated for patients 18 to 70 years of age.
Note
CPT Code(s)
82565
Components
Component Test Code*Component Chart Name
0020025Creatinine, Serum or Plasma
0026634Calculated GFR
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • Calculated Glomerular Filtration Rate
  • cGFR
  • eGFR
  • Estimated Glomerular Filtration Rate