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Creatinine, Blood

Creatinine, Blood is a topic covered in the Davis's Lab & Diagnostic Tests.

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Common Use:
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.

Normal Findings:
(Method: Spectrophotometry)

AgeConventional UnitsSI Units (Conventional Units × 88.4)
Newborn0.31–1.21 mg/dL27–107 micromol/L
Infant0.31–0.71 mg/dL27–63 micromol/L
1–5 yr0.31–0.51 mg/dL27–45 micromol/L
6–10 yr0.51–0.81 mg/dL45–72 micromol/L
Adult male0.61–1.21 mg/dL54–107 micromol/L
Adult female0.51–1.11 mg/dL45–98 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.

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Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Creatinine, Blood." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425282/all/Creatinine__Blood.
Bladh ML, Van Leeuwen AM. Creatinine, Blood. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425282/all/Creatinine__Blood. Accessed April 20, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Creatinine, Blood. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425282/all/Creatinine__Blood
Bladh ML, Van Leeuwen AM. Creatinine, Blood [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 April 20]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425282/all/Creatinine__Blood.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Creatinine, Blood ID - 425282 A1 - Bladh,Mickey Lynn, AU - Van Leeuwen,Anne M, BT - Davis's Laboratory & Diagnostic Tests UR - https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425282/all/Creatinine__Blood PB - F.A. Davis Company ET - 7 DB - Nursing Central DP - Unbound Medicine ER -