Kratom Urine Test Cartridge – KRA/500

Kratom Urine Test Cartridge for KRA/500 Screening

This kratom urine test cartridge combines a lateral-flow screening membrane with an enclosed cassette format. It is intended for preliminary qualitative screening of human urine for the KRA target identified in the cartridge’s current manufacturer insert.

The product is labeled KRA/500, indicating a manufacturer-stated 500 ng/mL urine screening cutoff. However, KRA/500 is not a universal assay specification. The current cartridge insert must be checked to determine whether its calibrator is mitragynine, 7-hydroxymitragynine or another kratom-related target.

This device is labeled Forensic Use Only. It is not presented as a home diagnostic, CLIA-waived clinical or DOT testing device.

Key Product Features

• Single-panel KRA urine screening cartridge
• Manufacturer-stated 500 ng/mL cutoff
• Enclosed cassette test format
• Uses three drops of urine
• Preliminary results in approximately five minutes
• Control and test lines for visual interpretation
• Individually sealed for use when needed
• Forensic Use Only
• Quantity-based pricing for larger programs
• Compact alternative to a multi-panel test cup

How to Use the KRA Drug Test Cartridge

Always follow the instructions supplied with the current product lot. If the cartridge insert differs from the steps below, the insert takes precedence.

1. Bring the sealed cartridge and urine specimen to room temperature, approximately 15–30°C.
2. Open the sealed pouch and remove the cartridge.
3. Place the cartridge on a clean, flat and non-absorbent surface.
4. Use the supplied dropper to collect the urine specimen.
5. Add three drops of urine to the cartridge’s specimen well.
6. Start the timer immediately.
7. Read the result at five minutes.
8. Do not interpret the result after ten minutes.

Use a clean, dry specimen container and avoid introducing bubbles or contaminants into the specimen well.

How to Interpret the Results

Negative Preliminary Result

Two colored lines appear:

• One line in the control region marked C
• One line in the test region marked T

A faint test line is generally interpreted as negative when the control line is present, subject to the current product insert.

Preliminary Non-Negative Result

One colored line appears in the control region, while no line appears in the test region.

This is a preliminary screening result. It does not conclusively identify a specific compound and should be confirmed using an appropriate definitive laboratory method.

Invalid Result

No control line appears.

The result is invalid even if a test line is visible. Review the procedure and repeat the test using a new cartridge.

Forensic Use Only

This KRA urine cartridge is labeled Forensic Use Only. Organizations must determine whether this designation is appropriate for their program, testing policy and jurisdiction.

Do not present this cartridge as:

• A home diagnostic test
• A CLIA-waived clinical test
• An FDA-cleared consumer test
• A DOT drug test
• A test that measures impairment
• A definitive laboratory identification
• A quantitative measurement of kratom or 7‑OH

The federal workplace testing panel does not include a dedicated KRA or 7‑OH assay. A KRA cartridge is a separately selected specialty screen.

Cartridge, Strip or Multi-Panel Cup?

Choose the testing format based on the program’s required analytes and workflow.

You can also compare other formats in the test cartridge category.

Test Limitations

This cartridge produces a qualitative preliminary result. It does not:

• Measure the exact amount of a compound in urine
• Determine dose or frequency of use
• Establish the time of exposure
• Determine impairment or intoxication
• Identify the commercial product consumed
• Distinguish natural kratom leaf from concentrated 7‑OH products
• Prove that a person has or has not used a substance
• Replace definitive laboratory confirmation

A negative result does not rule out exposure. A target may be absent, below the assay response level, outside the detectable period or different from the compound the cartridge is designed to recognize.

Confirmation of Preliminary Non-Negative Results

A preliminary non-negative result should be confirmed using an appropriate definitive laboratory method when the result may affect treatment, supervision, employment, legal action or another consequential decision.

The laboratory should be informed which kratom-related compounds require confirmation. Testing only for mitragynine may not answer the same question as a method that separately measures 7-hydroxymitragynine or related metabolites.

7-OH, Kratom and Changing Regulations

Natural kratom, concentrated 7‑OH products and synthetic kratom-related derivatives are not interchangeable terms. Their composition, risks and regulatory treatment can differ.

A urine-screening result does not determine whether the source product was legal or illegal. Federal, state and local regulations can also change. Review the current 7‑OH federal-status and drug-testing guide and the FDA’s kratom information for current educational information.

Bulk Kratom Test Cartridge Ordering

Quantity-based pricing is displayed above the Add to Cart button. Organizations planning a larger order should confirm:

• Current inventory
• Package quantity
• Product code
• Lot expiration date
• Storage requirements
• Calibrator and screening cutoff
• Cross-reactivity documentation
• Forensic Use Only designation

Eligible in-stock orders placed before the displayed shipping cutoff may qualify for same-business-day processing. For distributor quantities or product documentation, contact DrugTestingCup before ordering.

Frequently Asked Questions

What does the KRA/500 cartridge screen for?

It provides a preliminary urine screen for the KRA target identified in the current cartridge insert at a stated 500 ng/mL cutoff. The insert should be reviewed to identify its exact calibrator and cross-reactivity.

Does KRA/500 always mean the test directly detects 7-OH?

No. KRA/500 is not a universal assay specification. Different devices may use different calibrators and respond differently to mitragynine and 7-hydroxymitragynine.

How much urine does the cartridge require?

The current page instructions specify three drops of urine in the cartridge’s specimen well. Follow the instructions provided with the supplied lot.

How quickly are results available?

The result should be read at approximately five minutes and should not be interpreted after ten minutes.

What does a faint test line mean?

A visible test line is generally interpreted as negative when the control line is present, subject to the current manufacturer instructions.

Is this a home or CLIA-waived test?

No. The product is labeled Forensic Use Only and should not be promoted as a home diagnostic or CLIA-waived clinical test.

Does a preliminary non-negative result prove impairment?

No. The cartridge does not determine impairment, dose, frequency or time of exposure. A consequential preliminary non-negative result should receive appropriate laboratory confirmation.

Can the cartridge distinguish natural kratom from concentrated 7-OH?

No. A qualitative screening cartridge cannot identify the commercial product used or determine whether the exposure came from natural kratom, an extract or a concentrated product.