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Luteinizing Hormone (LH)

Also known as: Luteinizing hormone; Interstitial Cell Stimulating Hormone; ICSH
Formal name: Luteinizing hormone, serum
Related tests: FSH; Testosterone; Progesterone; Estradiol; Total estrogens

Why should I do it?
To evaluate your pituitary function, including fertility issues, gonadal failure, maturation concerns, or pituitary tumors

When should I do it?
When you are having difficulty getting pregnant or are having irregular or heavy menstrual periods; when your doctor thinks that you have symptoms of pituitary or Hypothalamic disorders or symptoms of ovarian or testicular disease; or when a doctor suspects that a child has delayed or earlier than expected sexual maturation

What Kind of Sample is Needed?
A blood sample drawn from a vein in your arm; sometimes a random urine sample or a 24-hour urine collection may be taken

Test Preparation Needed?
None