84702 Gonadotropin, chorionic (hCG); quantitative

Name of the Procedure:

Gonadotropin, chorionic (hCG); quantitative commonly known as Quantitative hCG Test or Beta hCG Test.

Summary

A quantitative hCG test measures the specific level of human chorionic gonadotropin (hCG) in the blood. Unlike qualitative tests that just confirm the presence of hCG, this procedure precisely quantifies the amount of the hormone.

Purpose

This test is primarily used to confirm and monitor pregnancy, diagnose potential pregnancy-related issues such as ectopic pregnancy or miscarriage, and can also be utilized in some cases to help diagnose certain types of cancers or health conditions that produce hCG, such as trophoblastic disease.

Indications

• Suspicion of pregnancy
• Monitoring an ongoing pregnancy
• Suspected ectopic pregnancy or miscarriage
• Diagnosis and monitoring of gestational trophoblastic disease
• As a tumor marker for certain types of cancers (e.g., testicular cancer)

Preparation

• No specific preparations are usually required for the test.
• Inform your healthcare provider about any medications you are taking, as some drugs can affect hCG levels.
• Fasting is generally not needed.

Procedure Description

1. A healthcare professional will clean the injection site on your arm.
2. A tourniquet is applied to make veins more visible.
3. A needle is inserted into the vein to draw a blood sample.
4. The sample is sent to a laboratory for quantitative analysis of hCG levels.
5. The procedure is quick and typically involves only minimal discomfort.

Duration

The blood draw typically takes about 5-10 minutes. The time to analyze the blood sample might take a few hours to a couple of days, depending on the lab's workload.

Setting

Usually performed in a hospital, outpatient clinic, or diagnostic laboratory.

Personnel

• Phlebotomist or Nurse (for drawing blood)
• Medical Technologist (for analyzing the sample)
• Physician or Specialist (for interpreting the results)

Risks and Complications

Common Risks:

• Minor pain or bruising at the blood draw site Rare Risks:
• Infection at the puncture site
• Dizziness or fainting during the blood draw

Benefits

• Accurate verification and monitoring of pregnancy status
• Early detection of potential pregnancy complications
• Useful in diagnosing and monitoring certain cancers

Recovery

• No significant recovery time is required.
• Minor soreness or bruising at the puncture site may occur but usually resolves quickly.

Alternatives

• Qualitative urine hCG test for a simpler, though less precise, confirmation of pregnancy.
• Ultrasound for further confirmation and detailed assessment of pregnancy beyond hormone levels.
• Other tumor markers and diagnostic imaging for cancer detection.

Patient Experience

During the procedure, you might feel a quick pinch or sting from the needle. After the procedure, you may experience slight tenderness at the site where the needle was inserted but this typically subsides shortly. Any significant pain or discomfort should be reported to a healthcare provider.