Midwest · TB Gold Blood Test – QuantiFERON Tuberculosis Lab Test
TB Gold Blood Test – QuantiFERON Tuberculosis Lab Test in Illinois
Below is a plain-language overview of the tb gold blood test – quantiferon tuberculosis lab test. The TB Gold Blood Test helps detect tuberculosis, an infectious disease affecting the lungs.
What this test is
The TB Gold Blood Test, also known as the QuantiFERON TB test, is a blood test used to identify the presence of tuberculosis bacteria. It measures the immune system's response to TB proteins. This test is an alternative to the traditional skin test.
What it measures
- Interferon-gamma release — reflects immune response to TB antigens
What the test involves
The test involves a standard blood draw, where a sample of your blood is collected from a vein in your arm. The sample is then analyzed in a laboratory.
Why it is often ordered
Clinicians typically order this test to check for latent or active tuberculosis infection, especially in individuals at higher risk. It is often used when a more specific test than the skin test is needed.
Preparation
Preparation instructions should be obtained from the collection lab, as they may vary. Follow any specific guidelines given by the lab.
How results are reported
Results indicate whether TB bacteria were detected in the blood. Reference ranges can vary by laboratory, so it is important to discuss your results with a healthcare provider.
Before you go
- Turnaround time for results
- Specific preparation instructions
- Sample collection details
Cities
TB Gold Blood Test – QuantiFERON Tuberculosis Lab Test in Illinois communities
Choose your city for local context and to request this test.