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Medical Definition of LH assay
1. A blood test which measures the amount of luteinising hormone (LH). LH is a protein hormone that is secreted by the anterior pituitary gland. In women, a surge in LH at midcycle causes ovulation. For the next 7-10 days LH maintains the corpus luteum which synthesises progesterone. The corpus luteum disintegrates after about 10 days if fertilization does not occur. In men, LH stimulates production of testosterone by the Leydig cells in the testes. This test may be used to evaluate anovulatory bleeding, infertility, ovarian cysts and multiple endocrine neoplasia (MEN) I. Normal values in males: 7 to 24 U/L. Normal values in females: greater than 6-30 U/L. Greater than normal values can indicate: anorchia, hypogonadism, Klinefelter syndrome, menopause, ovarian failure, polycystic ovary disease, precocious puberty and Turner's syndrome. Lower than normal values can indicate hypopituitarism. (27 Sep 1997)
Lexicographical Neighbors of LH Assay
| LGV LGk LH LH-RF LH-RH LH-RH degrading endopeptidase LH/FSH-RF LH2O LHB LHC | LHD LHRH LHS LHX LH and RH agonist LIAT LIBOR LIDAR LIFFE LIFO | LILO LIM domain LIM kinase LINAC LINEAR LINER LINERs LINES |
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