Table 1 Comparison of the commonest TB infection diagnosis tests
From: Ocular manifestations and diagnosis of tuberculosis involving the uvea: a case series
Tuberculin Skin Test | Interferon gamma releasing assay | Chest X Ray | |
|---|---|---|---|
Advantages | • Low cost • Wide availability | • Higher specificity than TST • No need follow-up | • Low cost • Wide availability |
Disadvantages | • Invasive • Common to have false-positive and false-negative result • Not recommend for children • Need follow-up for assessment | • Invasive • Not recommend for children | • Radioactive • TB uveitis may present with normal CXR |