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Alpha-fetoprotein (AFP); AFP-L3 fraction isoform and total AFP (including ratio)
CPT4 code
Name of the Procedure:
Alpha-fetoprotein (AFP); AFP-L3 fraction isoform and total AFP (including ratio).
Summary
The Alpha-fetoprotein (AFP) test measures the amount of AFP in your blood and includes the analysis of the AFP-L3 fraction isoform and total AFP, along with their ratios. This helps in assessing certain medical conditions, particularly related to the liver.
Purpose
This procedure is mainly used to screen and monitor for liver cancer (hepatocellular carcinoma) and to differentiate it from other liver diseases. It can also be used to monitor treatment effectiveness in individuals with liver cancer.
Indications
- Suspected liver cancer
- Chronic liver diseases, such as cirrhosis or hepatitis
- Increased risk of hepatocellular carcinoma
- Monitoring of cancer treatment outcomes
Preparation
- Generally, no special preparation or fasting is needed before the test.
- Inform your doctor about any medications or supplements you are taking.
Procedure Description
- A healthcare professional will draw a blood sample from a vein, usually in your arm.
- The blood sample is sent to a laboratory for analysis.
- The lab measures the total AFP and the AFP-L3 fraction isoform in your blood and calculates the ratio between them.
Duration
The blood draw itself usually takes about 5 to 10 minutes.
Setting
The procedure is typically performed in a hospital, outpatient clinic, or diagnostic laboratory.
Personnel
- Phlebotomist or nurse to draw the blood sample
- Laboratory technologists/technicians to analyze the sample
- Physicians to interpret the results
Risks and Complications
- Mild discomfort or pain at the blood draw site
- Bruising or slight bleeding
- Rare risk of infection at the puncture site
Benefits
- Helps in early detection of liver cancer
- Assists in distinguishing between cancerous and non-cancerous liver conditions
- Provides a basis for monitoring the progress and effectiveness of cancer treatments
- Offers insight into the risk of liver cancer in patients with liver disease
Recovery
- No significant recovery time is needed.
- Patients can usually resume normal activities immediately after the blood draw.
Alternatives
- Imaging tests like ultrasound, CT scan, MRI
- Other blood tests, such as liver function tests
- Biopsy to obtain liver tissue for histological examination
Patient Experience
- You may feel a brief sting or pinch when the needle is inserted.
- Mild soreness or bruise at the puncture site may occur but typically resolves quickly.
- Standard comfort measures like applying pressure to the puncture site can be used to minimize discomfort.