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1853. free β-hCG
Description
Free β-hCG is the active fraction of human chorionic gonadotropin. It is used to assess the risk of chromosomal abnormalities during pregnancy and as a tumor marker in non-pregnant women and in men with suspected trophoblastic, ovarian, or testicular tumors.
When and who needs the test?
What is the test for?
In pregnant women:
- screening for fetal chromosomal abnormalities (first and second trimesters);
- as part of double and triple tests.
In non-pregnant women and men:
- diagnosis and treatment monitoring of choriocarcinoma and hydatidiform mole;
- if germ cell tumors of the ovaries or testicles are suspected;
- to assess the effectiveness of antitumor treatment;
- to monitor for relapses.
It is recommended to test in combination with tumor markers: AFP, LDH, CA 125, and PEA. The hormone is also produced in large quantities by the pituitary gland.
Biological material
- Venous blood
Preparing for a blood test
In order to exclude factors that may affect the test results, we recommend to follow the preparation rules:
- an important condition for laboratory tests is to take blood on an empty stomach.
- 6-12 hours before the test, you should avoid eating, drinking alcohol, smoking, and limit physical activity. Drinking...