Category: Diagnostic testing

In clinical and forensic settings, immunoassay is widely favored as a fast and cost-effective method for preliminary toxicology screenings, with some variations of the test providing results in just minutes. This technique is so commonplace that it is the answer to the question: **What is a commonly used screening technique in toxicology?**.

According to the FDA drug label, phenazopyridine can interfere with urinalysis based on color reactions and spectrometry, potentially leading to misleading results. This common over-the-counter medication, often used for urinary tract infection symptoms, can cause a false positive, complicating diagnosis if not properly disclosed.

According to medical professionals, the abbreviation 'TLC' frequently causes confusion because it does not refer to a single drug but to several distinct concepts in medicine and pharmacology. This article explains what the 'TLC drug' is used for by clarifying its multiple meanings, from a common blood test to a laboratory technique.