Typically, the hCG levels will double every 72 hours. Levels of hCG continue to double every 48 to 72 hours. A normal pregnancy may have low hCG levels and deliver a perfectly healthy baby. Reference value is negative. Normal levels of hCG can vary tremendously.
4 thoughts on “Beta hcg and pregnancy dating”
Caution must be used in making too much of hCG numbers.
The quantitative human chorionic gonadotropin hCG blood test measures the level of hCG hormone present in a sample of your blood. Restraints on physicians practicing this therapy can be based on our findings.
Some antibodies may also interfere with test results.
Serial hCG values should not be used alone to determine whether or not a pregnancy is likely to be a successful intrauterine pregnancy, a miscarriage, or an ectopic pregnancy.