Know More About This Test
AFP (Alpha-Fetoprotein) is a protein produced by the fetal liver and yolk sac during pregnancy. In adults, elevated AFP levels may indicate certain liver diseases or cancers, particularly hepatocellular carcinoma and germ cell tumors. AFP testing is also widely used in prenatal screening to assess fetal abnormalities.
Why Is This Test Recommended?
AFP testing is recommended for liver disease evaluation, cancer monitoring, prenatal screening, and follow-up of AFP-producing tumors. It helps detect and monitor hepatocellular carcinoma in patients with chronic liver disease or cirrhosis. In pregnancy, it is used to screen for fetal neural tube defects and chromosomal abnormalities.
What Do the Results Indicate?
High AFP levels in adults may suggest liver cancer, chronic liver disease such as cirrhosis or hepatitis, or testicular and ovarian germ cell tumors. In pregnancy, abnormal AFP levels may indicate fetal neural tube defects like spina bifida or chromosomal abnormalities such as Down syndrome. Normal levels vary by age and pregnancy status.
How Is the Test Performed and Prepared For?
A blood sample is collected through standard venipuncture for laboratory analysis. No fasting is required for this test. Pregnancy status must be communicated to your doctor as reference ranges differ significantly between pregnant and non-pregnant individuals.
Frequently Asked Questions (FAQs)
Is AFP cancer-specific?
No; elevated AFP can occur in benign liver conditions, pregnancy, and other non-cancerous situations.Can benign conditions raise AFP?
Yes; cirrhosis, hepatitis, and other chronic liver diseases can cause elevated AFP levels.Is it used in pregnancy?
Yes; AFP is part of routine prenatal screening for fetal development abnormalities.Is repeat testing common?
Yes; serial AFP measurements help monitor disease progression or treatment response.Does AFP confirm cancer?
No; elevated AFP requires further diagnostic imaging or biopsy for cancer confirmation.
