Antigen Antibody Immunoassays are used to...

Antigen Antibody Immunoassays are used to...

• A. Presumptively Identify Biological agents
• B. Confirm Biological agents
• C. Detect chemical hazards
• D. Measure radiological signatures

Answer: (A)

Antigen–antibody immunoassays detect a specific protein associated with a biological agent. When that antigen is present in a sample, the assay produces a signal that indicates the agent’s presence. This provides rapid, presumptive identification, making these tests useful for quick screening and triage in field or clinical settings. However, they aren’t definitive proof of identity; cross-reactivity and other factors can affect results, so a positive result should be followed by confirmatory tests (such as culture or molecular methods) in a proper lab. These immunoassays are not used for detecting chemical hazards or radiological signatures, which require different detection approaches.

Antigen–antibody immunoassays detect a specific protein associated with a biological agent. When that antigen is present in a sample, the assay produces a signal that indicates the agent’s presence. This provides rapid, presumptive identification, making these tests useful for quick screening and triage in field or clinical settings. However, they aren’t definitive proof of identity; cross-reactivity and other factors can affect results, so a positive result should be followed by confirmatory tests (such as culture or molecular methods) in a proper lab. These immunoassays are not used for detecting chemical hazards or radiological signatures, which require different detection approaches.