Abdelazim IA. Abdelazim equation: For 24-h urine protein from spot urine sample in preeclampsia.
J Family Med Prim Care 2021;
10:1493-1495. [PMID:
34041200 PMCID:
PMC8140287 DOI:
10.4103/jfmpc.jfmpc_2112_20]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/08/2020] [Accepted: 12/21/2020] [Indexed: 11/06/2022] Open
Abstract
Measurement of 24-h urine protein (UP) is the standard method for detection of proteinuria in preeclampsia (PE). A 24-h urine sampling is time-consuming, inconvenient, and delays the diagnosis of PE. A 29-year-old woman, previous cesarean section (CS), pregnant 37 weeks'+2 days, mild PE, and another 31-year-old woman, primipara, pregnant 34 weeks'+4 days, severe PE, were admitted for control of blood pressure and termination of pregnancy. Studied women were subjected to fetal well-being assessment, routine antenatal, and laboratory investigations to exclude chronic renal diseases, and for 24-h urine sampling. A spot mid-stream urine sample was obtained shortly before the 24-h urine sampling to measure the protein/creatinine (P/C) ratio. The first studied woman had normal serum creatinine and blood urea, 688 mg protein/24-h urine, 86 mg/dL spot UP, 178 mg/dL spot urine creatinine, and 0.48 P/C ratio. The second studied woman had also normal serum creatinine and blood urea, 1199 mg protein/24-h urine, 147 mg/dL spot UP, 133 mg/dL spot urine creatinine, and 1.11 spot P/C ratio. The spot urine sample was suggested by the National Kidney Foundation to detect and monitor proteinuria in adults. Moreover, the 24-h UP can be calculated from the following equation: 24-h UP in g = P/C ratio × 0.81 + 0.3 (Abdelazim equation) without 24-h urine sampling. This report suggests the use of Abdelazim equation (24-h UP in g = P/C ratio × 0.81 + 0.3) for detection of 24-h UP from spot urine sample in PE without 24-h urine sampling.
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