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RST Home Drug Test Kits is here to provide answers to difficult questions with our full line of at home drug testing kits. We also offer support to guide you through the testing process and help you understand your results.

How the Test Works

Our Home Drug Test Kits are fast, easy and accurate. Results can be read in less than 5 minutes.

How the RST Home Drug Test Kits Works

The RST Home Drug Test Kits uses Lateral Flow Chromatographic Immunoassay technology, a process that takes place on each of the test strips.

The absorbent material of each test strip carries the urine sample across the strip at a specific speed.

Negative:

If the urine sample does not contain the specific drug or drug metabolites being tested for, the colored particles with the antibodies will flow up the test strip and be captured at a special location on the strip, forming a red or pink Drug Line.

When the colored Drug Line appears, the test is Negative for the drug being tested for.

Positive:

If the urine sample does contain the specific drug or drug metabolites being tested for, the colored particles with the antibodies will flow past the special location on the strip and no Drug Line will form.

When no colored Drug Line appears, this indicates a Preliminary Positive Result for the drug being tested for.

Finally, the sample reaches the control location near the top of the test strip where some of the colored particles are captured to form a red or pink Control Line. A visible Control Line indicates that flow through the strip was successful and the test is working properly.

Before taking the test, users must read all of the content in the package insert.

How to use RST Home Drug Test Kits

To ensure you achieve fast, accurate results, each RST Home Drug Test Kits comes with easy, step-by-step instructions, as well as guidance for reading and understanding your test result.

Before You Test

  • Read all instructions included with your kit.
  • Have a watch, clock, or timer available.
  • Check the expiration date on the box. Do not use if product has expired.

Step 1 – Take the Test

  • When you are ready to test, remove the test kit from the sealed foil pouch.

Step 2 – Activate Test

  • Collect Urine sample in specimen cup included. Please note not all RST Home Drug Test Kits include a specimen cup.

Step 3 – Read Your Results

  • Dip the test area into the urine specimen. Read results in 3 minutes

No DRUG DETECTED / Negative Result
A red or pink colored line next to the word Control AND a red or pink colored line next to the word Drug indicates a Negative Result for that drug, regardless of how dark or faint the lines may appear. No further testing is required.

DRUG DETECTED / Preliminary Positive Result
A red or pink colored line next to the word Control and NO line next to the word Drug indicates a Preliminary Positive Result for that drug.

INVALID RESULT
If after 10 minutes NO line appears next to the word Control, the result is Invalid.

Before taking the test, users must read all of the content in the package insert. For a list of reactive and non-reactive drugs, see the drug testing guides, which can be found on the Instructions tab within the product pages.

For more details, please see your package insert.

Interpreting Test Results

RST Home Drug Test Kits will provide you with results in 5 minutes. You should not wait longer than 10 minutes to read the results.

  • A red or pink line must appear next to the word “Control” to indicate the test has worked correctly.

No Drugs Detected
A red or pink colored line next to the word “Control” AND a red or pink colored line next to the word “Drug” indicates a Negative Result for that drug, regardless of how dark or faint the lines may appear. No future testing is required.

Drug Detected
A red or pink colored line next to the word “Control” and NO line next to the word “Drug” indicated a Preliminary Positive for that drug.

Invalid Result
If after 10 minutes NO line appears next to the word “Control,” the result in Invalid.

Before taking the test, users must read all of the content in the package insert.

Detection Cut-Off Levels

Product

Description

Cut-Off

Detection

K2
Cannabis One Step Test (Strip)
200ng/ml
14-30 days
AMP
Amphetamine One Step Test (Strip)
1000ng/ml
2-4 days
BAR
Barbiturates One Step Test (Strip)
300ng/ml
5-14 days
BZO
Benzodiazepines One Step Test (Strip)
300ng/ml
2-28 days
BUP
Buprenorphine One Step Test (Strip)
10ng/ml
8-14 days
COC
Cocaine One Step Test (Strip)
300ng/ml
2-14 days
COT
Cotinine Test Strip (Urine)
200ng/ml
2-3 days
MDMA
Ecstasy One Step Test (Strip)
500ng/ml
1-3 days
EDDP
Methadone One Step Test (Strip)
100ng/ml
2-8 days
FYL
Fentanyl One Step Test (Strip)
200ng/ml
2-14 days
KET
Ketamine One Step Test (Strip)
1000ng/ml
2-4 days
THC
Marijuana One Step Test (Strip)
50ng/ml
14-30 days
MTD
Methadone One Step Test (Strip)
300ng/ml
2-8 days
MET
Methamphetamine One Step Test (Strip)
1000ng/ml
2-8 days
MQL
Methaqualone One Step Test (Strip)
300ng/ml
2-28 days
MOP
Morphine One Step Test (Strip)
300ng/ml
2-5 days
OPI
Opiates One Step Test (Strip)
2000ng/ml
2-5 days
OXY
Oxycodone One Step Test (Strip)
100ng/ml
2-5 days
PCP
Phencyclidine One Step Test (Strip)
25ng/ml
2-8 days
PPX
Propoxyphene One Step Test (Strip)
300ng/ml
2-8 days
TCA
Tricyclic Antidepressants One Step Test (Strip)
1000ng/ml
2-5 days
TMLTramadol One Step Test (Strip)
100ng/ml
2-5 days
ALC
Alcohol One Step Test (Strip)
50ng/ml
6-24 hours
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