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Test Code LAB66 Creatinine

Additional Codes

CPT Code: 82565

Methodology

This battery is also included in Basic Metabolic Panel (LAB15); Comprehensive Metabolic Panel (LAB17); Creatinine Clearance, Plasma or Serum and Urine (LAB818); and Renal Function Panel (LAB19).

Performing Laboratory

TidalHealth Peninsula Regional - Core Laboratory: Chemistry

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma
Draw blood in a green-top (lithium heparin) tube. Spin down and send 2 mL of lithium heparin plasma. Hemolyzed specimen is not acceptable.
Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

 

Serum
Draw blood in a gold-top serum gel tube. Spin down and send 2 mL of serum. Hemolyzed specimen is not acceptable.

Note: 1. Indicate serum.

2. Label specimen appropriately (serum).

Reference Values

Creatinine

0-2 months : 0.31-0.98 mg/dL

2-12 months: 0.16-0.39 mg/dL

1-3 years: 0.18-0.35 mg/dL

3-5 years: 0.26-0.42 mg/dL

5-7 years: 0.29-0.47 mg/dL

7-9 years: 0.34-0.53 mg/dL

9-11 years: 0.33-0.64 mg/dL

11-13 years: 0.44-0.68 mg/dL

13-15 years:0.46-0.77 mg/dL

Males

≥15 years: 0.64-1.17mg/dL

Females

≥ 15 years: 0.51-0.95 mg/dL

 

Note: Serum acetoacetate will lower creatinine results. Acetone and α-ketobutyric acid will elevate results.

 

Estimated Glomerular Filtration Rate (eGFR) by CKD-EPI Equation

 

eGFR Reference Range: ≥60 mL/min/1.73 m2

 

When calculating eGFR, the equation takes into account the patient’s serum creatinine, age, sex, and race. African-American and non-African American eGFR values will be reported from the eGFR calculation.

 

eGFR will not be reported for patients <18 years of age. eGFR by this equation has been shown to be valid for diabetic patients but not for pregnant patients. It is not recommended using this for drug dosing - for drug dosing use the CG equation.

Additional Information

Available STAT