It is a variant of hCG, which is typically produced by placental syncytiotrophoblast cells. Free beta hCG is not bound to other subunits of hCG and circulates independently in the bloodstream.
Measurement of free beta hCG levels is used in various medical scenarios, primarily as a marker for the detection and monitoring of pregnancy. Blood or urine tests for hCG, including free beta hCG, can confirm pregnancy even before the missed menstrual period.
During pregnancy, hCG levels increase rapidly and can be detected in the blood and urine. The levels of free beta hCG can help estimate the gestational age of the pregnancy and identify potential issues such as ectopic pregnancy or miscarriage.
Beyond pregnancy, free beta hCG can also be used as a tumor marker. Elevated levels of free beta hCG can be observed in certain cancers, particularly gestational trophoblastic neoplasms (GTNs) such as choriocarcinoma or certain testicular cancers.
Interpreting free beta hCG results should always be done in conjunction with a healthcare professional familiar with the patient's medical history and diagnostic context. Other tests and investigations may be necessary to confirm the presence of pregnancy or assess the underlying cause of elevated free beta hCG levels.
Overall, measurement of free beta hCG is a valuable tool in confirming and monitoring pregnancy as well as evaluating certain medical conditions related to hCG production. It facilitates appropriate medical management and treatment decisions based on the individual's specific situation.
Report Time:
24 Hours
Fasting Time:
Free
Recommended Test:
Female
Recommended age:
5-99 Years
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