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A single measure of urinary neutrophil gelatinase–associated lipocalin was accurate for diagnosing acute kidney injury

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T L Nickolas

Dr T L Nickolas, Columbia University, New York, NY, USA; tln2001@columbia.edu

STUDY DESIGN

Design:

prospective cohort study.

Setting:

an emergency department (ED) in New York, New York, USA.

Patients:

635 consecutive patients ⩾18 years of age (mean age 60 y, 51% men) who attended the ED between 06:00 and 24:00. Patients receiving haemodialysis or who did not have >1 serum creatinine measurement were excluded.

Description of tests:

urinary neutrophil gelatinase–associated lipocalin (NGAL) was measured using an immunoblotting procedure, serum creatinine using the Jaffe reaction, urinary N-acetyl-β-D-glucosaminidase (NAG) using an enzyme measurement, and α1-microglobulin and α1-acid glycoprotein using immunonephelometery.

Diagnostic standard:

clinical diagnosis of acute kidney injury (AKI) was defined as new-onset, 1.5-fold increase in serum …

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