The validity of two-hour creatinine clearance studies in critically ill patients

The validity of two-hour creatinine clearance studies in critically ill patients

To determine the accuracy of 2-h creatinine clearance studies in critically ill surgical patients, 12 consecutive 2-h specimens of urine were collected on 30 patients in a surgical ICU. The 2-, 4-, 6-, 8-, 12-, and 24-h creatinine clearances that were calculated averaged 66 ± 58 (sd), 59 ± 45, 62 ±...

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Veröffentlicht in:Critical care medicine 1980-05, Vol.8 (5), p.281-284
Hauptverfasser: WILSON, ROBERT F, SOULLIER, GEORGE
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Creatinine - urine
Critical Care
Evaluation Studies as Topic
Humans
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SOULLIER, GEORGE
description To determine the accuracy of 2-h creatinine clearance studies in critically ill surgical patients, 12 consecutive 2-h specimens of urine were collected on 30 patients in a surgical ICU. The 2-, 4-, 6-, 8-, 12-, and 24-h creatinine clearances that were calculated averaged 66 ± 58 (sd), 59 ± 45, 62 ± 49, 63 ± 48, 66 ± 50, and 59 ± 38 ml/min. The correlation coefficient between the 2− and 24-h creatinine clearance was 0.85 (p < 0.001). The main factor causing differences between the 2− and 24-h creatinine clearance values was variability in urine output. When the average hourly urine output was essentially the same for the 2− and 24-h urine specimens, the correlation coefficient was 0.94. A relatively easy 2-h urine collection can provide essentially the same indication of creatinine clearance as a 24-h sample, particularly if urine output remains constant.
doi_str_mv 10.1097/00003246-198005000-00002
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subjects Creatinine - urine
Critical Care
Evaluation Studies as Topic
Humans
title The validity of two-hour creatinine clearance studies in critically ill patients
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