Progesterone
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Progesterone is a female hormone, produced primarily in the ovary, primarily
during the second half ("luteal phase") of the menstrual cycle.
Men also produce progesterone, but only very small amounts.
Shortly after ovulation, progesterone levels rise quickly and remain
elevated for about 10 days.
- If pregnancy occurs, the progesterone levels remain elevated.
- If pregnancy does not occur, then progesterone levels fall, provoking
a menstrual flow.
Progesterone levels are sometimes used to evaluate a possible ectopic
pregnancy:
- If progesterone > 25, ectopic pregnancy is very unlikely
- When less than 25, the results are not conclusive either way.
Elevations found in:
- Pregnancy
- Second half of the menstrual cycle
- Congenital adrenal hyperplasia
- Some hormone-producing tumors of the ovary
Decreases found in:
- Polycystic Ovary Syndrome (PCO, Stein-Levinthal Syndrome)
- Amenorrhea-Galactorrhea Syndrome
- Luteal phase defects
- Menopause
- Ovarian failure
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Normal Values*
| Men |
< 1.0 ng/ml |
|
Women
(Proliferative Phase) |
< 1.5 ng/ml |
Women
(Luteal Phase) |
3-20 ng/ml |
*These are general values taken from a variety of
sources. The actual normal values may vary from lab to lab and from one
type of testing protocol to another.
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Approved for public release;
Distribution is unlimited.
The listing of any non-Federal product in this CD is not an endorsement of the
product itself, but simply an acknowledgement of the source.
Bureau of Medicine and Surgery
Department of the Navy
2300 E Street NW
Washington, D.C
20372-5300 |
Operational Medicine
Health Care in Military Settings
CAPT Michael John Hughey, MC, USNR
NAVMED P-5139
January 1, 2001 |
United States Special Operations
Command
7701 Tampa Point Blvd.
MacDill AFB, Florida
33621-5323 |
*This web version is provided by
The Brookside Associates Medical Education Division. It contains
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advertising on these pages does not constitute an endorsement of that product or
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Brookside Associates is a private organization, not affiliated with the United
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Operational Medicine 2001
Contents
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