The second time during pregnancy that the levels of ß-hCG are important is during the screening test called the "Triple Test".  This test is also referred to as "The Multiple Marker Test" and "The AFP-Plus Test".  During this test, a blood sample is taken and tested for three specific proteins, one of which is HCG, (There is a debate as to whether HCG or free beta-HCG is the best method).  The combination of measurements combined with information about the mother can indicate either Spina-Bifida or Down Syndrome.  As shown on the previous page, the levels of ß-hCG should drop away 8-9 weeks into the pregnancy (as the placenta takes over production of progesterone), if higher than expected levels of ß-hCG are found between 15 and 22 weeks, then this could indicate an abnormal foetus development.

For a full explanatory article on the subject of tests and screenings, see the article Genetic Testing Options in Pregnancy.

What are the normal levels of ß-hCG?

ß-hCG is measured in either UI/L or mUI/mL.  Either way, the number is the same.

• In men, there is normally less than a level of 3.

• In women during their normal menstrual cycle, the level is less than 5.

• In women of menopause years, the level is less than 10

Introduction

1. The Role of b-hCG

2. Important Markers

3. The Numbers

4. Charts and Tables

For a discussion on the other hormones in pregnancy, such as progesterone and estrogen (oestrogen) - click here.