Marijuana (THC) Rapid Test (Urine)

Marijuana, cannabis or tetra-hydro-cannabinol (THC) is a hallucinogenic agent derived from the flowering portion of the hemp plant. Smoking is the primary method of use of marijuana/cannabis. Higher doses used by abusers produce central nervous system effects, altered mood and sensory perceptions, loss of co-ordination, impaired short-term memory, anxiety, paranoia, depression, confusion, hallucinations and increased heart rate. A tolerance to the cardiac and psychotropic effects can occur, and withdrawal syndrome produces restlessness, insomnia, anorexia and nausea.

When marijuana is ingested, the drug is metabolized by the liver. The primary urinary metabolite of marijuana is 11-nor-Δ⁹-THC-9-carboxylic acid, and its glucuronide. This means that the presence of detected cannabinoids, including the primary carboxyl metabolite, in the urine indicate marijuana/cannabis use.

MATERIALS

Materials Provided

Materials Required but Not provided

TEST PROCEDURE

Bring tests, specimens, buffer and/or controls to room temperature (1530°C) before use.

1. 1. Remove the test from its sealed pouch, or remove one strip from the canister, and use it as soon as possible. For best results, the assay should be performed within one hour. Canisters should be closed tightly after removing strips.
2. 2. Hold the strip by the end, where the product name is printed. To avoid contamination, do not touch the strip membrane.
3. 3. Holding the strip vertically, dip the test strip in the urine specimen for at least 10-15 seconds. Do not immerse past the maximum line (MAX) on the test strip.

4. After the test has finished running, remove the strip from the specimen and place it on a non-absorbent flat surface. Start the timer and wait for the colored band(s) to appear. The result should be read at 5 minutes. Do not interpret the result after 8 minutes.

INTERPRETATION OF RESULTS

POSITIVE: Only one colored band appears, in the control region (C). No apparent colored band appears in the test region (T).

NEGATIVE: Two colored bands appear on the membrane. One band appears in the control region (C) and another band appears in the test region (T).

INVALID: Control band fails to appear. Results from any test which has not produced a control band at the specified read time must be discarded. Please review the procedure and repeat with a new test. If the problem persists, discontinue using the kit immediately and contact your local distributor.

NOTE:

1. The intensity of color in the test region (T) may vary depending on the concentration of analytes present in the specimen. Therefore, any shade of color in the test region should be considered positive. Note that this is a qualitative test only, and cannot determine the concentration of analytes in the specimen.
2. Insufficient specimen volume, incorrect operating procedure or expired tests are the most likely reasons for control band failure.

3. LIMITATIONS OF THE TEST

   1. 1. The Marijuana (THC) Rapid Test(Urine) is for professional in vitro diagnostic use, and should be used for the qualitative detection of THC metabolites 
   2. 2. The Marijuana (THC) Rapid Test(Urine) provides only a quantitative, preliminary analytical result. A secondary analytical method must be used to obtain a confirmed result. Gas chromatography/mass spectrophotometry (GC/MS) is the preferred confirmatory method.
   3. 3. Please take the specificity and the cross reactivity into account for evaluation
   4. 4. A positive result with any of the tests indicates the presence of a drug/metabolite only, and does not indicate or measure intoxication.
   5. 5. A negative result may not necessarily indicate drug-free urine. Negative results can be obtained when drug is present but below the cut-off level of the test.
   6. 6. There is a possibility that technical or procedural errors as well as other substances and factors not listed may interfere with the test and cause false results.
   7. 7. The test is designed for use with human urine only. Due to absence of ions and other components in pure water the usage or pure water for test could lead to false or invalid results.
   8. 8. The test does not distinguish between drugs of abuse and certain medications.
   9. 9. The test results can be used to provide evidence and basis for therapy and treatment plans of drug dependence and toxic psychosis. For laboratory professional in vitrodiagnostic use only.
   10. 10. The test should only be performed by health professionals in a clinical/hospital setting to aid in screening of drug of abuse to determine the follow-up treatment measures in combination of clinical symptoms.
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