المختبرات الطبية الأولى

:Normal range

Inhibin A

 pg/mL 5.46-28.16      : Early follicular phase 0-4 day of LMP

 pg/mL 7.87-34.54      : Mid follicular phase 5-10 day of LMP

 pg/mL 19.49-102.28  : Late follicular 11-13 day of LMP

pg/mL 49.92-155.48  : Day of ovulation 14 day of cycle

 pg/mL 35.93-132.68  : Early luteal phase 15-17 day of LMP

 pg/mL 13.15-159.55  : Mid luteal phase 18-25 day of LMP

 pg/mL 7.28-89.95      : Late luteal phase 26-28 day of LMP

 pg/mL 354.2-1690.0  : IVF – Peak levels

 pg/mL 5.65-15.99      : PCOS – Ovulatory

pg/mL < 1-3.88        : Post menopausal

Inhibin B

Normal range: 22-418 pg/mL

Comment: Inhibin is the major gonadal inhibitory peptide regulating secretion of FSH in both sexes. It is synthesized in the placenta and plateaus during weeks 14-30. The a subunit combines with a b subunit to form Inhibin A (Ab) or Inhibin B (Bb). This test is used with other studies for prediction of Down’s syndrome. Studies discussed as second trimester tests include AFP, hCG, and Inhibin A with or without unconjucated estriol uE3

Sample: serum