What complications can occur as a result of CEA test?

The CEA test is generally considered a safe procedure, but, like any medical test, it carries some potential risks and complications, although these are rare. Here are some possible complications associated with the CEA test:

1. Bleeding: The blood draw for the CEA test involves pricking the finger or drawing blood from a vein in the arm. In rare cases, excessive bleeding or bruising may occur at the puncture site.

2. Infection: As with any procedure involving breaking the skin, there is a slight risk of infection at the puncture site. Proper hygiene and disinfection techniques are followed to minimize this risk.

3. Fainting or Dizziness: Some individuals may experience lightheadedness or dizziness during or after the blood draw. This is usually temporary and resolves quickly.

4. Vasovagal Response: In rare cases, a vasovagal response can occur. This is a temporary condition caused by a sudden drop in blood pressure and heart rate. It can result in fainting, sweating, nausea, and a feeling of lightheadedness.

5. Hematoma Formation: If the injection site is not properly compressed after blood draw, a hematoma, or collection of blood outside the vein, may form. This can cause pain and discomfort.

6. Nerve Damage: Although uncommon, nerve damage to the area where the blood was drawn may occur. This can lead to numbness or tingling in the affected area.

7. Allergic Reaction: Some individuals may have an allergic reaction to the materials used during the CEA test, such as the cleaning solution or the latex used in gloves. Symptoms of an allergic reaction can include hives, rash, itching, difficulty breathing, or swelling.

It's important to discuss these potential complications with your doctor before undergoing the CEA test. Your healthcare provider will take necessary precautions to minimize any risks and ensure your safety throughout the procedure.