Human Chorionic Gonadotropin Normal Value Reference Table
Human chorionic gonadotropin (hCG) is a hormone produced by the placenta during pregnancy. It is used as a marker for pregnancy and can be detected in the blood and urine. HCG levels rise rapidly in early pregnancy and peak around 10-12 weeks. They then decline gradually throughout the rest of pregnancy.
The normal range for hCG levels varies depending on the stage of pregnancy. The following table provides a reference range for hCG levels in mIU/mL:
| Gestational Age | HCG Level |
|---|---|
| 3-4 weeks | 5-50 |
| 5-6 weeks | 18-7340 |
| 7-8 weeks | 1080-56500 |
| 9-10 weeks | 2560-229000 |
| 11-12 weeks | 23100-299000 |
| 13-14 weeks | 12150-205000 |
| 15-16 weeks | 4590-103000 |
| 17-18 weeks | 1170-80100 |
| 19-20 weeks | 926-56500 |
| 21-22 weeks | 364-40200 |
| 23-24 weeks | 184-27300 |
| 25-26 weeks | 103-18100 |
| 27-28 weeks | 58.6-12000 |
| 29-30 weeks | 32.9-8600 |
| 31-32 weeks | 18.7-7320 |
| 33-34 weeks | 10.7-5900 |
| 35-36 weeks | 6.29-4860 |
| 37-38 weeks | 3.68-3940 |
| 39-40 weeks | 2.16-3240 |
It is important to note that these are only reference ranges. The normal range for hCG levels can vary from woman to woman. If you are concerned about your hCG levels, talk to your doctor.
Factors that can affect hCG levels
There are a number of factors that can affect hCG levels, including:
Multiple pregnancy
Molar pregnancy
Ectopic pregnancy
Gestational trophoblastic disease
Miscarriage
If you have any of these conditions, your hCG levels may be higher or lower than the normal range.
HCG testing
HCG testing is used to diagnose pregnancy and to monitor its progress. HCG levels can be measured in the blood or urine. Blood tests are more sensitive than urine tests and can detect hCG earlier in pregnancy.
HCG testing is typically done in the following situations:
To confirm pregnancy
To monitor the progress of pregnancy
To diagnose ectopic pregnancy
To diagnose molar pregnancy
To diagnose gestational trophoblastic disease
HCG levels and pregnancy complications
Abnormally high or low hCG levels can be a sign of a pregnancy complication. For example, high hCG levels may be a sign of multiple pregnancy or molar pregnancy. Low hCG levels may be a sign of ectopic pregnancy or miscarriage.
If you have any concerns about your hCG levels, talk to your doctor.
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