Understanding the larger picture of the TB testing process helps laboratory professionals troubleshoot unusual laboratory findings. The laboratorian is often the liaison between the physician, public health department, infection prevention and control department, clinic, or other health care provider. In many cases, unusual laboratory findings may be explained by investigating (asking questions) about risk factors, vaccination status, comorbidities, and the like.
The following subtopics (TST and IGRA) include sections on the interpretation of lab results and limitations present in the current testing methods. Case study questions in the final exam will test your understanding of the relationship between patient history and laboratory test findings.
