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Chart of hCG Hormone Ranges* During
Human Pregnancy
The
hCG hormone level in the human body doubles approximately every 2.2 days during
the first trimester of pregnancy. Detectable levels of hCG start at 5 mIU/ml
during the first week of gestation and rise to 100,000 mIU/ml at 2 to 3 months.
Values decline to 10% to l5% of peak concentrations during 2nd and 3rd
trimesters. In normal circumstances, first morning urine samples approximate
serum hCG levels which reach 5 to 50 mIU/ml within one(1) week of gestational
age.
HCG Levels during Pregnancy |
After Conception
Week of Pregnancy: |
Normal HCG Levels:
MIU/ML |
1 |
5-50 (avg.
14) |
2 |
5-50
(avg. 21) |
3 |
5-50
(avg. 42) |
4 |
10-425 |
5 |
19-7,340 |
6 |
1,080-56,500 |
7-8 |
7,650-229,000 |
9-12 |
25,700-288,000 |
13-16 |
13,300-254,000 |
17-24 |
4,060-165,400 |
25-40 |
3,640-117,000 |
The
above table shows the typical ranges in hCG levels during pregnancy.
*Statistically, the ranges are necessarily broad as
each pregnancy cycle and hormone level is unique to the individual and extreme
readings either way are possible in a very small percentage of pregnancies.
However the table does clearly indicate the rapid increase in hCG hormone during
the first trimester.

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