|QUANTITATIVE HCG AND PREGNANCY|
Chorionic Gonadotropin (hCG)is the "pregnancy hormone" that keeps the corpus
luteum producing progesterone when conception occurs. It can be detected in the urine and
in the blood.
The Home Pregnancy Tests (HPTs) measures the urine HCG qualitatively, which mean results are either "positive" or "negative". In a pregnancy, it usually becomes positive around the time of the first missed period.
The Blood hCG test measures the HCG quantitatively, which means you get a number for the test. The blood hCG is much more sensitive than a urine HPT, and it can detect pregnancy as early as 10 days after fertilization.
Other than just finding the hCG, and diagnosing pregnancy, hCG is also often monitored over time for certain reasons.
Other facts about Postconception Monitoring of HCG:
|Week from the
Last Menstrual Period (LMP)
|HCG in mIU/ml
|HCG in mIU/ml
|5 - 50||9-130|
|4 weeks||3 - 426||75-2,600|
|5 weeks||19 - 7,340||850-20,800|
|6 weeks||1,080 - 56,500||4,000-100,200|
|7 - 12 weeks||7,650 - 288,000||11,500-289,000|
|13 - 16 weeks||13,300 - 254,000||18,300-137,000|
|17 - 24 weeks||4,060 - 165,400||1,400-53,000|
|25 - 40 weeks||3,640 - 117,000||940-60,000|
|The numbers in this pregnancy beta chart are to be used only as a guideline and are not the final word on the status of your pregnancy. You should always discuss the results of your blood tests with your physician.|
These values are from a group of 53
normal singleton pregnancies
NORMAL SINGLE PREGNANCIES
The information in the table above is part of a study carried out by Dr. Sherbahn that compared HCG levels from single, twin and heterotopic (combined intrauterine and ectopic) pregnancies.