Human Chorionic Gonadotropin (hCG): Results
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Results
The human chorionic gonadotropin (hCG) test is done to measure the amount of the hormone hCG in blood or urine to see whether a woman is pregnant. HCG may also be measured to see whether cancer of the ovaries or testicles is present.
Normal
Normal values may vary from lab to lab.
| Men and nonpregnant women: | Less than 5 international units per liter (IU/L) | |
|---|---|---|
| Pregnant women: | About 24 to 28 days after the last menstrual period (LMP): | 5–100 IU/L |
4 to 5 weeks after the LMP: | 50–500 IU/L | |
5 to 6 weeks after the LMP: | 100–10,000 IU/L | |
Peak, 14 to 16 weeks after the LMP: | 12,000–270,000 IU/L | |
| Men: | None (negative test) |
|---|---|
| Nonpregnant women: | None (negative test) |
| Pregnant women: | Detectable (positive test) |
High values
- If you are pregnant, very high levels of human chorionic gonadotropin (hCG) can mean a multiple pregnancy (such as twins or triplets), a molar pregnancy, Down syndrome, or that you are further along in an early pregnancy than estimated by your last menstrual period (LMP).
- In a man or a nonpregnant woman, a high hCG level can mean a tumor (cancerous or noncancerous) that develops from a sperm or egg cell (germ cell tumor), such as a tumor of the testicles or ovaries, is present. It may also mean some types of cancer, such as cancer of the stomach, pancreas, large intestine, liver, or lung.
Low values
- If you are pregnant, low levels of hCG can mean an ectopic pregnancy, death of your baby, or that you are not as far along in an early pregnancy as estimated by your last menstrual period (LMP).
- If you are pregnant, levels of hCG that are decreasing abnormally can mean a miscarriage (spontaneous abortion) is very likely.
| Last updated: | May 14, 2008 |
|---|---|
| Author: | Sandy Jocoy, RN |
| Reviewed By: | Sarah Marshall, MD - Family Medicine, Siobhan M. Dolan, MD, MPH - Reproductive Genetics |
| Editors: | Kathleen M. Ariss, MS, Tracy Landauer |
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