Trazodone and False Positive Drug Test Results

Introduction to Trazodone-Related False Positives

• No evidence exists linking trazodone to false positive THC results, according to the American Academy of Pediatrics, as reported in Pediatrics 1

Critical Clinical Action Steps

• Immediately obtain the patient's complete medication history, specifically asking about trazodone use, as recommended by the medical community 2
• Order confirmatory testing using gas chromatography-mass spectrometry (GC-MS) before making any clinical decisions, as advised by medical guidelines 2
• Never make consequential decisions based solely on immunoassay screening results, as cautioned by medical experts 3

Understanding the Testing Limitation

• Standard immunoassay drug screens are designed as screening tests only and have known limitations in specificity due to cross-reactivity, as noted in medical literature 2
• Confirmatory testing adds cost but is essential when results will affect patient management, according to medical guidelines 4

Common Pitfalls to Avoid

• Assuming all positive drug screens represent illicit drug use is incorrect, as many prescribed medications, including trazodone, cause false positives, as warned by medical experts 2
• Failing to discuss unexpected results with laboratory personnel or toxicologists before taking action can lead to misinterpretation, as advised by medical guidelines 3