QuantiFERON-TB Gold In-Tube

QuantiFERON-TB Gold In-Tube Applications, cont.

November 2009

It does raise the question, “Does QuantiFERON In-Tube demonstrate a lower sensitivity compared to the tuberculin skin test?” 

This question is challenging to answer, because it’s difficult to accurately estimate the sensitivity of these assays due to the absence of a gold standard method to arbitrate discordant results.

However, the CDC has stated that “A greater rate of positive results with the skin test than with QuantiFERON has been observed in persons WITH and WITHOUT recognized risks of Mycobacterium tuberculosis infection.”  So I think this issue remains somewhat controversial.

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Applications, cont.

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Jump to section:

• Introduction
• The Global Impact of Tuberculosis
• Conventional Diagnosis of Latent Tuberculosis Infection (LTBI)
• Limitations of TST
• Interferon Gamma Release Assays (IGRA): An Alternative to TST?
• QuantiFERON-TB Gold In-Tube
• QuantiFERON-TB Gold In-Tube, cont.
• QuantiFERON-TB Gold In-Tube, cont.
• QuantiFERON-TB Gold In-Tube Advantages over TST
• QuantiFERON-TB Gold In-Tube Limitations
• QuantiFERON-TB Gold In-Tube Applications
• QuantiFERON-TB Gold In-Tube Applications, cont.
• QuantiFERON-TB Gold In-Tube Applications, cont.
• QuantiFERON-TB Gold In-Tube Applications, cont.
• QuantiFERON-TB Gold In-Tube Applications, cont.
• QuantiFERON-TB Gold In-Tube Applications, cont.
• QuantiFERON-TB Gold In-Tube Applications, cont.
• QuantiFERON-TB Gold In-Tube Applications, cont.
• Information for Collection Sites Keys to Accurate Performance
• Blood Collection
• Blood Collection, cont.
• Blood Collection, cont.
• Blood Collection, cont.
• Mixing of Blood Collection Set
• Mixing of Blood Collection Set
• Storage and Incubation
• Storage and Incubation
• Incubation
• Centrifugation of Collection Tubes
• Shipping Specimens
• QuantiFERON-TB Gold In-Tube Conclusions
• Questions?