What does the EMIT test detect?

The EMIT test, or Enzyme Multiplied Immunoassay Technique, is specifically designed to identify the presence of drugs or their metabolites in urine. This test utilizes antibodies that react to specific drug compounds, allowing for the detection of various substances used therapeutically or illicitly. The EMIT test is widely used in drug screening because of its effectiveness in providing rapid results and its ability to analyze multiple substances simultaneously.

In contrast, the other options do not align with the primary purpose of the EMIT test. Physical fitness assessment involves measuring various physiological parameters, which is entirely different from drug detection. Therapeutic drug levels would require specific tests tailored to measure the concentration of particular medications in the system, rather than a broad detection of substances. Lastly, biochemical markers for liver function relate to assessing liver health, involving tests such as liver enzyme levels, which are not the focus of the EMIT test.