This blood test measures Progesterone levels. Progesterone is a steroid hormone that is produced in the ovaries, the adrenal glands, in the placenta during pregnancy and is stored in adipose tissue.

Progesterone prepares the uterus to receive and sustain pregnancy Progesterone balances the powerful effects of estrogen. An imbalance in progesterone will have an effect on sleep, respiration, mood, appetite, learning and memory. Progesterone is a neurosteroid, which means it is neuroprotective. Progesterone supports the normal development of neurons in the brain and has a protective effect on damaged brain tissue. It is important to assess thyroid function when evaluating progesterone levels. Thyroid hormones sensitize cells so progesterone can be readily used. If cells are not exposed to enough thyroid hormones, progesterone cannot enter the cells. In men, a progesterone imbalance can cause weight gain, decrease in libido and prostate enlargement.

Test Preparation For Optimal Results:

If possible, have the lab collected early in the morning or shortly after waking. For comparison purposes, have subsequent labs collected close to the same time.

Disclaimer: Your health care provider should evaluate a deviation from normal ranges.