Total reviews 422
Total reviews 422
Tests Included: 3
Est. 2-4 (business days) Turnaround
Specimen type: Blood
Quest Diagnostics Location
Serum creatinine is useful in the evaluation of kidney function and in monitoring renal dialysis. A serum creatinine result within the reference range does not rule out renal function impairment: serum creatinine is not sensitive to early renal damage since it varies with age, gender and ethnic background. The impact of these variables can be reduced by an estimation of the glomerular filtration rate using an equation that includes serum creatinine, age and gender.
Tests Included: 3
Est. 2-4 (business days) Turnaround
Specimen type: Blood
Quest Diagnostics Location
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Please do not exercise prior to testing. It is best that your blood is taken in a rested state.
Note: Turn around times on results are an estimate and are not guaranteed. The lab may need additional time due to holidays, confirmation/repeat testing, etc. You can contact us to discuss when your results should be ready and we will contact the lab on your behalf immediately.
| Age | Male (mg/dL) | Female (mg/dL) |
| ≤2 days | 0.79-1.58 | 0.79-1.58 |
| 3-27 days | 0.35-1.23 | 0.35-1.23 |
| 1 month-9 years | 0.20-0.73 | 0.20-0.73 |
| 10-12 years | 0.30-0.78 | 0.30-0.78 |
| 13-15 years | 0.40-1.05 | 0.40-1.00 |
| 16-17 years | 0.60-1.20 | 0.50-1.00 |
| 18-19 years | 0.60-1.26 | 0.50-1.00 |
| 20-49 years | 0.60-1.35 | 0.50-1.10 |
| 50-59 years | 0.70-1.33 | 0.50-1.05 |
| 60-69 years | 0.70-1.25 | 0.50-0.99 |
| 70-79 years | 0.70-1.18 | 0.60-0.93 |
| ≥80 years | 0.70-1.11 | 0.60-0.88 |
For patients >49 years of age, the upper reference limit for creatinine is approximately 13% higher for people identified as African-American.
| eGFR Non-African American | ≥60 mL/min/1.73m2 |
| eGFR African American | ≥60 mL/min/1.73m2 |
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