HIV 1 & 2 ANTIBODIES WESTERN BLOT
🛡️ Confirmatory Gold Standard Test📋 Test Details
- Report Time: Next Day Evening.
- Method: Western Blot (Immunoblotting).
- Sample Type: Serum (Blood).
- Fasting: Not Required.
What is the Western Blot Test?
The Western Blot is a highly specific blood test used to detect specific proteins (antibodies) related to the HIV virus. Unlike standard screening tests (like Tridot or ELISA) which can sometimes give False Positives, the Western Blot is extremely precise.
It separates the HIV proteins into individual bands (like a barcode). If your blood contains antibodies to these specific viral bands, the diagnosis is confirmed.
When is this Test Prescribed?
This test is NOT a first-line screening test. It is prescribed only in specific situations:
If you tested Reactive or Positive on a rapid card test (Tridot) or ELISA, doctors order a Western Blot to be 100% sure before starting treatment. It rules out false alarms.
HIV-1 is the most common type worldwide, while HIV-2 is rarer and less aggressive. Treatment differs slightly for both. This test can distinguish between the two.
Never panic after a single positive screening test. Screening tests are designed to be sensitive, meaning they sometimes pick up non-HIV antibodies (cross-reaction). Always confirm with Western Blot.
Understanding the Results
- Positive: Specific HIV bands are present. Infection is confirmed.
- Negative: No HIV bands are present. The previous screening test was likely a false positive. You do not have HIV.
- Indeterminate: Only partial bands are seen. This can happen in very early infection or cross-reaction. Retesting may be needed after a few weeks.
Frequently Asked Questions
It is not better, but it is more Specific. ELISA is good for screening (finding possible cases), while Western Blot is the gold standard for Confirming the diagnosis.
Yes, but it is usually recommended only if you have a reason to suspect infection or had a reactive screening test, due to its higher cost and complexity.
Yes. We strictly adhere to patient confidentiality protocols. Your results are shared only with you.
Disclaimer: This is a confirmatory diagnostic test. Clinical correlation and medical advice are mandatory for positive results.