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To assess kidney function found in acute kidney injury and chronic kidney disease, related to drug reaction and disease such as diabetes.
Serum collected in a red- or red/gray-top tube. Plasma collected in a green-top (heparin) tube is also acceptable.
|Age||Conventional Units||SI Units (Conventional Units × 88.4)|
|Newborn||0.31–1.21 mg/dL||27–107 micromol/L|
|Infant||0.31–0.71 mg/dL||27–63 micromol/L|
|1–5 yr||0.31–0.51 mg/dL||27–45 micromol/L|
|6–10 yr||0.51–0.81 mg/dL||45–72 micromol/L|
|Adult male||0.61–1.21 mg/dL||54–107 micromol/L|
|Adult female||0.51–1.11 mg/dL||45–98 micromol/L|
Values in older adults remain relatively stable after a period of decline related to loss of muscle mass during the transition from adult to older adult.
The National Kidney Foundation recommends the use of two decimal places in reporting serum creatinine for use in calculating estimated glomerular filtration rate.