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Performance Evaluation of the New Rapid Fertility Assays in Whole Blood and Plasma on PATHFAST by Yuuko Sugie, Ko Igami, Keiichi Shoji, Nozomi Arai, Yukiko Tazaki, Hideki Kouta, Yoshikazu Okamura, Shigeru Tashiro, Hiroyuki Yokoi

Background: The purpose of this study was to evaluate the validity of the PATHFAST fertility marker assays for the rapid measurement of female hormones including: LH, FSH, Estradiol (E2), Progesterone (P4), Prolactin (PRL), and HCG. As for the PATHFAST fertility marker assays, female hormones can be measured by whole blood, plasma, and serum.
Methods: The correlation of the heparin whole blood and the plasma samples in the PATHFAST was examined. The method comparison study of PATHFAST fertility marker assays was performed with the Elecsys 2010, AIA-360, IMMULITE 2000, miniVIDAS, and ARCHITECT i2000. Determination of the reference range values of the PATHFAST fertility marker assays was performed with serum samples which were obtained during the follicular phase, mid-cycle, luteal phase, and postmenopausal phase.
Results: The results of plasma samples of female hormones measured by the PATHFAST correlated highly with those of whole blood samples (r > 0.9). The results of LH, FSH, E2, P4, PRL, and HCG as measured by the PATHFAST correlated well with other commercial fertility assays (r > 0.9). Reference values of PATHFAST fertility marker assays were equivalent to those of other commercial methods.
Conclusions: The PATHFAST system is an accurate diagnostic tool for the rapid assay of female hormones. The PATHFAST fertility marker assays can be useful in a physician's office laboratory (POL) as well as various clinical sites during infertility treatment.

DOI: Clin. Lab. 2011;57:99-106