LH is a gonadotropin, a glycoprotein polypeptide hormone which is synthesized and secreted by gonadotropic cells of the anterior pituitary gland and regulates the development, growth, pubertal maturation and reproductive processes of the body. It is secreted from the pituitary gland. It is needed as a part of an infertility test, a gynaecological function test or to work up a problem about pitutiary gland.
LH increases during the middle of the menstrual cycle to make the ovaries release eggs. It Works closely with FSH hormone.
The test is also used to confirm a menopausal state.
Interpretation:If LH levels are high, this may show anovulation, in perimeopausal or meopausal state, polycystic ovary syndrome (PCOS), Turner Syndrome (a genetic disorder affecting sexual development in females). If LH levels are low, this may show that there is a dysfunction in the pituitary gland or a nutritional disorder(malnutrition). In man, high levels may show a damaged testicular tissue or Klinefelter’s Syndrome (a genetic disorder that affect sexual development in males), low levels may indicate a disorder in the pituitary gland or the hypotalamus. In children, high levels (together with FSH values)are seen in the puberty onset. If this is before the age 9, this may be due to a central nervous system disorder or a brain injury. Low levels may indicate a disorder of ovary and testicles, Turner syndrome in girls, Klinfelter’s syndrome in boys, an infection, a hormone deficiency or a malnutrition.
Sample: Arm vein blood. Nonfasting
Working day: Everyday
Result Time: Same day 3 hours
