Why Choose Urine for Drug Testing?
Urine is the gold standard for drug testing because it has a longer window of detection, is non-invasive and less costly when compared to blood testing. There are two main types of urine drug tests: Point-of-care (POC) and laboratory-based tests.
POC vs Laboratory-based Tests
The following chart details the benefits, limitations, and suggested use of POC and laboratory-based tests.
- POC testing involves a urine drug cup and collection in the physician’s office. The test results are read immediately by the office laboratory or staff.
- Laboratory tests are more sensitive than POC tests. These are quantitative, confirmatory tests that use chromagraphic methods to provide definitive parent drug identification and/or their metabolite(s).
|Michael R. Clark, MD, MPH, MBA
Director, Pain Treatment Program
The Johns Hopkins Hospital, Baltimore, MD
How to Test: POC vs Lab-based Testing