What are the precautions for HIV antibody testing

Before HIV antibody testing, high-risk behaviors should be avoided for more than 72 hours. On the day of testing, fasting is not necessary but a light diet is recommended. After testing, follow medical advice for follow-up and psychological counseling.

1. Preparation before testing

High risk exposure behaviors such as unprotected sex and sharing needles should be avoided within 72 hours before testing to avoid affecting the window period judgment. Normal diet and drinking water are allowed, but it is recommended to avoid drinking alcohol and high-fat diet for 24 hours before the test to prevent changes in blood viscosity from interfering with the test results. If there is any recent immunization or use of blocking drugs, it is necessary to proactively inform medical personnel.

2. Selection of Detection Methods

Common detection methods include third-generation ELISA antibody detection, fourth generation antigen antibody combination detection, and rapid detection test strips. Medical institutions often use venous blood sampling for initial screening, with an accuracy rate of over 99%, while fingertip blood rapid testing is suitable for emergency screening but may result in false negatives. The window period is usually 2-6 weeks, and high-risk behaviors should be detected at sufficient intervals.

3. The testing process should be coordinated with [SEP]. When taking venous blood, the arm should be kept straight, and the needle hole should be pressed for 5 minutes after blood collection to prevent bruising. The use of rapid test strips for testing must be strictly operated according to the instructions. insufficient or excessive blood drop may result in biased results. During the testing period, you can ask the counselor about the testing principle and the significance of the results to alleviate anxiety.

4. Positive result processing

Initial screening of positive results requires confirmation through immunoblotting, and antiviral treatment should be initiated immediately after diagnosis. The state provides free first-line drugs such as lamivudine tablets and sodium dobutavir tablets, and regular testing of CD4 cell count and viral load is required during treatment. At the same time, recent sexual partners should be notified to undergo testing to avoid virus transmission.

5. Negative result management

Testing negative after the window period can rule out infection, but it is recommended to screen high-risk individuals regularly every 3 months. After a negative result, it is still necessary to adhere to the use of condoms and other protective measures, and before exposure, use entecavir tablets for blocking. It can be inoculated with hepatitis B, HPV and other vaccines to improve the comprehensive protection ability. After the SEP test, regardless of the results, one should maintain a regular sleep schedule and balanced diet, and supplement with high-quality protein and vitamin C in moderation to enhance immunity. To avoid excessive fatigue or vigorous exercise affecting immune status, it is recommended to take walks, practice yoga, and exercise regularly. Pay attention to personal belongings in daily life, and use blocking drugs promptly within 72 hours after exposure risks occur. Regularly receive sexual health education and psychological assessments, and establish a scientific awareness of protection.