WaiveDx Fentanyl Drug Tests Strips* Rapid Fentanyl (FYL) Test Strips are a competitive immunoassay that are used to screen for the presence of Fentanyl (FYL) in urine, liquid or pills. Looking for a fast and reliable way to detect fentanyl in liquid or powder samples? Look no further than the WaiveDx Fentanyl Drug Test Strips! These Fentanyl (FYL) Test Strips use a competitive immunoassay to screen for the presence of fentanyl in just 5 minutes. With individually packaged test strips and a compact format, our fentanyl tests are the gold standard of Fentanyl detection. Detects Fentanyl in concentrations above 200 ng/mL, ensuring that you can identify even low levels of fentanyl. Testing Directions: Test must be at room temperature 59-86°F (15-30°C). 1. Open the sealed pouch by tearing along the notch. remove the test strip from the pouch. 2. Immerse the strip into the sample that will be tested with the arrow pointing towards the liquid sample. Take the strip out after 10 seconds. IMPORTANT: Do not allow the liquid sample level to exceed the MAX (marker line), otherwise the test will not perform correctly. 3. Lay the test strip on a clean, dry, non-absorbent surface. 4. Read the results at 5 minutes. The drug test results remain stable for up to thirty (30) minutes. READING RESULTS: Preliminary positive (+) A rose-pink band is visible in the control region, but no colored band appears in the test region. This indicates a preliminary positive result for this specific drug. Preliminary positive results must be sent to a lab for confirmation. Negative (-) A rose-pink band is visible in the control region and the test region. This indicates that the drug is not present in the sample or is at a level that cannot be detected by this test. Invalid If a color band is not visible in the control region, or a color band is only visible in the test region, the test is invalid. You should repeat the test with a new test Strip. If the test still shows an invalid res