Cross-reactivity Information for Immunoassay Screening Tests

Immunoassay screening tests provide rapid and reliable results for Urine Drug Tests.  On occasion a positive result is questioned by a client.  Is the positive test a “False Positive” result, i.e. caused by a substance other than the intended drug for the assay.  On the other hand, the patient may be taking a drug that is not readily identified as a member of a Drug Class.  The following table summarizes the immunoassays that are performed at Ammon Analytical laboratory and their respective cross-reactivity information.

Cross-reactivity information PDF:    Cross Reactivity


Post Written by: Jerry Meenan