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Establishment of Reference Range for Leucine Arylamidase in Pregnant Women in China
Background:
Leucine arylamidase (LAP) is a type of proteinase. During pregnancy, the LAP value of women will continue to rise, but there is currently no established normal range for this value.
Methods:
A total of 26,208 records of LAP information from pregnant women who visited Qingdao Municipal Hospital between 2016 and 2022 were selected, including 25,582 records of healthy pregnant women. The study used the AU5800 Series Clinical Chemistry Analyzer as the detection equipment. The Wilcoxon method was appropriate for calculating confidence intervals in this study since LAP values in pregnant women have a skewed distribution.
Results:
The reference ranges obtained were 64.00 - 70.50 U/L, 161.00 - 166.00 U/L, and 174.50 - 182.50 U/L for the first trimester, second trimester, and third trimester, respectively.
Conclusions:
LAP can rise significantly during pregnancy, so it is essential to establish an appropriate reference range for pregnant women. Abnormal values of LAP carry a risk of developing various pregnancy disorders.
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