Cotzias C, Wong SJ, Taylor E, Seed P, Girling J. A study to establish gestation-specific reference intervals for thyroid function tests in normal singleton pregnancy.
Eur J Obstet Gynecol Reprod Biol 2008;
137:61-6. [PMID:
18093719 DOI:
10.1016/j.ejogrb.2007.10.007]
[Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2006] [Revised: 08/18/2007] [Accepted: 10/23/2007] [Indexed: 10/22/2022]
Abstract
OBJECTIVE
To establish gestation-specific reference intervals for thyroid function tests in normal singleton pregnancy.
STUDY DESIGN
Cross-sectional observational study performed in the Obstetric and Gynaecology department, West Middlesex University Hospital. A single blood sample from 335 pregnant women at various gestations of pregnancy was analysed for thyroid function. FT4, fT3, TSH values at each gestation of pregnancy were calculated.
RESULTS
From the fT3, fT4 and TSH results, a 95% reference interval was calculated for each hormone for each week of pregnancy.
CONCLUSION
We calculated gestation-specific reference intervals for thyroid function tests throughout pregnancy to facilitate clinical management of thyroid disease in pregnancy.
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