Open AccessReference Values for Serum Components in Pregnant Women
Author(s) -
Berg Bertel,
Petersohn Lennart,
Helm GÖRan,
Tryding Nils
Publication year - 1984
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016348409155541
Subject(s) - medicine , pregnancy , albumin , alkaline phosphatase , reference values , second trimester , bilirubin , gestation , endocrinology , third trimester , percentile , reference range , obstetrics , physiology , enzyme , biochemistry , biology , statistics , genetics , mathematics
Abstract. Reference values have been collected for 11 chemical blood serum components during the three trimesters of pregnancy in 100 healthy pregnant women. The results used for reference intervals are presented as 2.5, 50 and 97.5 percentiles. Especially regarding S‐Albumin, S‐Alkaline phosphatase and S‐5′‐Nucleotidase the changes were most pronounced during the third trimester. S‐Gammaglutamyltransferase did not change significantly during pregnancy. For S‐Aspartate aminotransferase and S‐Alanine aminotransferase there were no significant changes in the mean values during the three different trimester periods. In the third trimester the frequency distribution of the enzymes became skewed to the right, i.e. in some women the enzyme activities increased noticeably more than in others. S‐Na showed a significant decrease even during the first trimester and this lowering was slightly more pronounced during the second and third trimesters. S‐Ca decreased in parallel with S‐Albumin concentration. The changes in S‐Ca Albumincorrected were distinctly smaller than those in S‐Ca Total . Throughout pregnancy, S‐K, S‐Bilirubin and S‐Thymol turbitidy test values did not deviate from nonpregnant levels.