How to interpret an INVALID result with the UScreen Cup?
If a colored band is not visible in the Control Region (C) or a colored band is only visible in the Test Region (T), the test is invalid. Another test should be opened and run to re-evaluate the specimen. If the test still provides an invalid result, please contact the distributor from whom you purchased the product. When calling, be sure to provide the lot number and the catalog number of the test shown on pouch.
Interpreting the Results:
| Negative A negative result is indicated by the presence of both a “C” control line or and a “T” test line for each designated drug. |
Negative The presence of a “C” control line and a very light “T” test line indicates a negative result. Any indication of a “T” test line is interpreted as a negative result. |
Positive A positive result is indicated by the presence of a “C” control line and the absence of a “T” test line. Wait 5 minutes to read positive results. |
Invalid An invalid result is indicated when the “C” line is completely missing from one or more test windows. If this happens, run another test. |
