Free B-hCG, quantitiative (Human Chorionic Gonadotropin, β-Subunit - quantitative)
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Free B-hCG, quantitiative (Human Chorionic Gonadotropin, β-Subunit - quantitative)

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The Free B-hCG quantitative test is a medical examination that measures the levels of Human Chorionic Gonadotropin (hCG) in the body. This hormone, specifically the -subunit, is produced during pregnancy and is commonly used to detect and monitor pregnancy, as well as diagnose certain medical conditions. By quantifying the amount of hCG present in the blood or urine, this test can provide valuable information to healthcare professionals and assist in making accurate diagnoses.

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About this test

What is
Free β-hCG
?

Human chorionic gonadotropin (hCG) is a glycoprotein hormone which consists of 2 subunits: - and -chains (intact hormone). The first has no diagnostic value since it corresponds to the alpha subunits of luteinizing, follicle-stimulating and thyroid-stimulating hormones, while the beta subunit is unique, which is why it is used to determine the level of hCG accurately. In non-pregnant women and men, hCG levels are minimal: an elevated level may indicate the presence of a tumour process. HCG can be synthesized by germ cells of tumours with a trophoblastic component (germinal cells of the ovaries, testicles) and some non-trophoblastic tumours. When interpreting the results of a minimally elevated level of hCG in perimenopausal and menopausal women, it is necessary to consider the possibility of hCG production by the pituitary gland.

Why
Free β-hCG
is needed?

The level of this hormone can be used: To diagnose pregnancy. An increase in the level in the blood of a woman from 610 days after fertilization; Monitoring the progression of pregnancy. Correspondence of the level of hCG to the gestational age and the dynamics of the increase in the first 8 weeks of pregnancy - doubling every 48 hours - in the event of a threat of interruption or death of the fetus, there will be a discrepancy with the term and the dynamics of the decrease in the level; diagnosis of ectopic pregnancy. Inconsistency of the level of hCG with the expected gestational age and the absence of a doubling after 48 hours; in combination with other biochemical markers (PAPP-A in the first trimester and AFP and free estriol in the second trimester) in prenatal screening programs for fetal pathology (a marker of chromosomal aberrations). If the fetus has Down's syndrome, there is an increase in the level of hCG by more than 2 MoM, with Edwards syndrome - a decrease below 0.6 MoM; for diagnostics, differential diagnosis, monitoring of treatment efficacy, and control of recurrence of trophoblastic tumours: hCG-producing tumours of ovarian, placental and testicular origin.

Free β-hCG
preparation recommendations

To exclude false-negative results, it is necessary to take an analysis no earlier than 5 days from fertilization.

Frequently Asked Questions:

What is a beta-hCG (-hCG) blood test, and why is it important for detecting pregnancy and monitoring its progress?

The beta-hCG blood test measures the levels of human chorionic gonadotropin (hCG), a hormone produced during pregnancy, in the blood. It is an essential tool for detecting pregnancy and monitoring its progress. The test can confirm pregnancy as early as 10 days after conception, even before a missed period. By monitoring the levels of hCG over time, healthcare providers can assess the viability of the pregnancy, identify potential complications such as ectopic pregnancy or miscarriage, and track the progress of fetal development. The -hCG blood test is vital in providing crucial information for obstetric care.

How does the -hCG blood test differ from a home pregnancy test, and what are the advantages of this method?

The blood test -hCG differs from a home pregnancy test as it directly measures the amount of hCG in the blood, while a home pregnancy test detects the presence of hCG in urine.The -hCG blood test is considered more accurate and sensitive, especially in early pregnancy, and can detect pregnancy sooner than a home pregnancy test. In addition, the -hCG blood test can provide quantitative results, indicating the exact level of hCG in the blood, which can be useful in monitoring the progress of pregnancy or detecting potential complications.

How soon after conception can I take a -hCG blood test, and when is the best time for accurate results?

The -hCG lab test can detect pregnancy as early as 10 days after conception. This means you can take the test shortly after a fertilized egg implants in the uterus. However, the timing of the test depends on various factors, including the sensitivity of the test used and the regularity of your menstrual cycle. For the most accurate results, it is recommended to wait until after you have missed your period or to follow the specific instructions provided by your healthcare provider. Consulting with a medical professional will help determine the optimal time for testing.

How do I prepare for a -hCG blood test, and what can I expect during the appointment?

Preparing for a -hCG blood test is generally straightforward. No special preparation is usually required. However, following any instructions your healthcare provider provides is advisable, such as fasting requirements or avoiding certain medications. During the appointment, a healthcare professional will draw a small blood sample, typically from a vein in your arm. The procedure is relatively quick and involves minimal discomfort. After the blood collection, the sample will be sent to a laboratory for analysis, and you will receive the results within a specified timeframe. You can easily and quickly do this test -hCG in Montreal at our laboratory near you. We guarantee the results of the test within one day.

How are the results of a -hCG blood test interpreted, and what do the various levels indicate about my pregnancy status and progress?

The results of a -hCG blood test are typically reported as the concentration of hCG in the blood. The levels of hCG increase rapidly during early pregnancy and reach their peak around 8-11 weeks before gradually declining. Higher levels of hCG generally indicate a healthy pregnancy, while lower or stagnant levels may suggest potential issues, such as miscarriage or ectopic pregnancy. Serial measurements of hCG levels over time are vital for monitoring the progress of a pregnancy and assessing its viability. Your healthcare provider will interpret the results in the context of your circumstances and provide guidance accordingly.

If my -hCG blood test results are abnormal or inconclusive, what are the next steps for further evaluation and potential treatment?

If -hCG blood test results are abnormal or inconclusive, further evaluation may be necessary. Your healthcare provider may recommend repeating the test after a certain amount of time has passed, performing an ultrasound to assess the pregnancy, or conducting additional blood tests to check for other conditions. Sometimes, treatment may be necessary to manage a medical condition related to abnormal -hCG levels. For example, an ectopic pregnancy may require medical intervention or surgery to prevent serious complications, while a molar pregnancy may require monitoring or removal of abnormal tissue. It's important to follow up with your healthcare provider and discuss any concerns or questions about your -hCG blood test results and the next steps for evaluation and potential treatment. Many pregnancy-related conditions can be effectively managed and treated with proper monitoring and care. You can sign up online for testing and conveniently take our laboratory's -hCG test in Montreal.

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