1853. free β-hCG
Description
HCG is a hormone that is normally synthesized by the placenta during pregnancy. There are protein-bound and unbound (free) hCG. Free hCG determines the activity of the hormone. The test is used in pregnant women to screen for chromosomal pathology of the fetus and neural tube defects.
Elevated levels of β-hCG in men and outside of pregnancy may indicate the development of cancer. The test is used in the diagnosis of trophoblastic disease, ovarian and testicular cancer. β-HCG should be taken in combination with AFP, LDH, REA, CA 125 and other tumor markers.
When and who needs the test?
It is recommended to pass this test in women with suspected trophoblastic disease, vesicular drift, chorionic carcinoma, in men – in the presence of testicular formations.
n case of suspicion of hCG-producing tumors of other localizations. Monitoring the effectiveness of tumor treatment. During pregnancy, this indicator is included in computer programs for calculating the risk of chromosomal pathology of the first and second trimester.
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...