ICSH(Interstitial Cell Stimulating Hormone), also known as Luteinizing Hormone (LH) is produced by the pituitary gland. Along with other hormones (follicle-stimulating hormone and estrogen), ICSH helps regulate the menstrual cycle in women and causes ovulation to occur. The amount of Luteinizing Hormone released into the body varies with the phase of the menstrual cycle. It increases rapidly just before ovulation occurs, about midway through the cycle (day 14 of a 28-day cycle). This is called an LH surge. Luteinizing hormone and follicle-stimulating hormone levels rise and fall together during the monthly menstrual cycle. In men, LH stimulates testosterone production and is necessary for sperm to mature.
LH is usually measured in both a man and a woman to determine why the couple cannot achieve pregnancy (infertility).
Call LabSafe toll free at 1-888-333-LABS to speak with a Medical Counselor for further information on ICSH and a Luteinzing Hormone Test, or simply place your order online.
References are as follows:
Age Male(mIU/mL) Female (mIU/mL)
0-23 mo 0.5-1.9 0.0-0.5
2-10 y 0.0-0.5 0.0-0.5
11-20 y 0.5-5.3 0.5-9.0
20-70 y 1.5-9.3 0.0-76.3
70-100 y 3.1-34.6 5.0-52.3
Follicular: 1.9-12.5
Midcycle: 8.7-76.3
Luteal: 0.5-16.9
Pregnant: 0.0-1.5
Postmenopausal: 5.0-52.3
Contraceptives: 0.7-5.6
