Human chorionic gonadotropin (HCG) blood test- quantitative

A quantitative human chorionic gonadotropin (HCG) test measures the specific level of HCG in the blood. HCG is a hormone produced in the body during pregnancy.

Other HCG tests include:

  • HCG urine test
  • HCG blood test – qualitative

Why the Test is Performed?

HCG appears in the blood and urine of pregnant women as early as 10 days after conception. Quantitative HCG measurement helps determine the exact age of the fetus. It can also diagnose abnormal pregnancies, such as ectopic pregnancies, molar pregnancies, and possible miscarriages. It is also used as part of a screening test for Down syndrome.

This test is also done to diagnose abnormal conditions not related to pregnancy that can raise HCG level.

Normal Results

HCG level rises rapidly during the first trimester of pregnancy and then slightly declines.

What Abnormal Results Mean?

Higher than normal level may indicate:

  • Normal pregnancy.
  • More than one fetus, for example, twins or triplets.
  • Choriocarcinoma of the uterus.
  • Hydatidiform mole of the uterus.
  • Ovarian cancer.
  • Testicular cancer (in men).

Lower than normal levels may indicate:

  • Fetal death.
  • Incomplete miscarriage.
  • Threatened spontaneous abortion (miscarriage).
  • Ectopic pregnancy.

If you have questions about your results, talk to your doctors.

Keywords: Human chorionic gonadotropin (HCG) blood test- quantitative; HCG blood test- quantitative.

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.