Finding the Fertile Phase: Low-Cost Luteinizing Hormone Sticks Versus Electronic Fertility Monitor

MCN. the American Journal of Maternal Child Nursing
Mary Lee BarronKathleen Raviele

Abstract

To investigate if generic Wondfo ovulation sticks (WLH) are sufficiently sensitive to the luteinizing hormone (LH) surge in urine when used with the Marquette Fertility Algorithm. The electronic hormonal fertility monitor (EHFM) is highly accurate in detecting the LH surge but cost of the monitor and the accompanying test sticks has increased over the last several years. The EHFM is sensitive to detect the LH surge at 20 milli-international units per milliliter (mIU/mL); the WLH sticks are slightly less sensitive at 25 mIU/mL. A convenience sample of women using the Marquette Method of Natural Family Planning with the EHFM to avoid pregnancy were recruited (N = 54). Each participant used the EHFM every morning after cycle day 6 and tested morning and evening urine with the WLH stick until the day following detection of the LH surge on the EHFM. Forty-two women provided 219 cycles. Frequency of LH surge detection was 182/219 (83.1%) for EHFM and 203/219 (92.7%) for WLH sticks. Agreement between the EHFM and the WLH on the day of the LH surge was 97.7%. High fertility readings providing a warning of peak fertility at least 5 days before peak was 67% for the WLH; the EHFM was 47.7%. Paired sample correlations for high fertility wa...Continue Reading

References

Jan 8, 2005·Journal of Midwifery & Women's Health·Richard J Fehring
Apr 15, 2011·Journal of Obstetric, Gynecologic, and Neonatal Nursing : JOGNN·Richard Jerome FehringKathleen Raviele
Dec 10, 2013·MCN. the American Journal of Maternal Child Nursing·Qiyan Mu, Richard J Fehring
Apr 24, 2014·Journal of Obstetric, Gynecologic, and Neonatal Nursing : JOGNN·Richard J Fehring, Qiyan Mu
Mar 1, 2015·Fertility and Sterility·Rene EcochardPilar Vigil
May 29, 2015·The European Journal of Contraception & Reproductive Health Care : the Official Journal of the European Society of Contraception·Judith RoosChristian Gnoth

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