13 Panel Multi Dip Card

Thirteen-substance urine drug test dip cards available in three configurations: the standard Forensic Use Only format with integrated Fentanyl and PCP, the CLIA Waived clinical format with FEN at two sensitivity levels plus EDDP and TCA. The 13-panel is the lowest tier where Fentanyl is a standard built-in analyte across all configurations — not an optional add-on. Searching for a 13 panel drug test near me?

12 Panel Now ships same-day wholesale anywhere in the US before 3:00 PM EST, free shipping on bulk orders. As the manufacturer of the Serenity brand drug testing product line, 12 Panel Now produces all 13-panel dip cards to the same quality control standards applied across the full product range.

The table below shows the complete 13 panel drug test substances list for each configuration, with cutoffs and detection windows.

Substance	Abbr.	Cutoff	Detection Window	Configs
Amphetamines	AMP	1000 ng/mL	2 to 4 days	All
Barbiturates	BAR	300 ng/mL	2 days to 3 weeks	Standard, CLIA
Buprenorphine	BUP	10 ng/mL	3 to 7 days	All
Benzodiazepines	BZO	300 ng/mL	3 days to weeks	All
Cocaine	COC	300 ng/mL	2 to 4 days	All
Ethyl Glucuronide (Alcohol)	ETG	300 ng/mL	Up to 80 hours	TRA+ETG+ADLTX
Fentanyl	FEN	20 ng/mL	24 to 72 hours	All
MDMA / Ecstasy	MDMA	500 ng/mL	2 to 4 days	All
Methamphetamine	MET	1000 ng/mL	2 to 4 days	All
Methadone	MTD	300 ng/mL	3 to 5 days	All
Opiates / Morphine	OPI	300 ng/mL	Up to 3 days	All
Oxycodone	OXY	100 ng/mL	2 to 4 days	All
PCP / Phencyclidine	PCP	25 ng/mL	7 to 14 days	Standard FUO only
TCA / Tricyclic Antidepressants	TCA	1000 ng/mL	2 to 7 days	CLIA Waived only
Marijuana / THC	THC	50 ng/mL	3 to 30+ days	All
Tramadol	TRA	100 ng/mL	1 to 4 days	TRA+ETG+ADLTX
Adulterants (ADLTX)	ADLTX	Sp. Gravity / pH / Creatinine	Immediate (specimen validity)	TRA+ETG+ADLTX

Shop 13 Panel Drug Test Dip Card with TRA, ETG, FEN and Adulterants (SKU SM-DOA-3135EFAD3) — from $1.89 | 13 Panel Standard FUO with FEN (SM-DOA-2135FUO) — from $1.29 | CLIA Waived 13 Panel (SM-DOA-2135CLIA) — from $1.29

What Does a 13 Panel Drug Test Test For?

A 13 panel urine drug test dip card screens for thirteen substances in a single dip, with the defining characteristic of this tier being that Fentanyl is integrated as a standard strip across all configurations — not an optional add-on as it is at lower panel counts. At 12 Panel Now, the 13 Panel Drug Test Dip Card is available in three configurations.

The Standard FUO format with FEN and PCP, the CLIA Waived format with FEN at 20 ng/mL and at 1 ng/mL plus EDDP and TCA. The advanced compliance format (SM-DOA-3135EFAD3) adding Tramadol (TRA), Ethyl Glucuronide (ETG), and three adulterant detection strips. The HHS Federal Register mandate of January 2025 adding fentanyl to authorized federal testing panels effective July 7, 2025 makes the 13-panel the minimum configuration that meets the federal substance authorization standard in a single dip card.

The SAMHSA Drug-Free Workplace Program confirms that fentanyl detection requires a dedicated FEN immunoassay strip and cannot be inferred from any standard OPI or opiate analyte, making the 13-panel’s integrated FEN strip the critical upgrade from the 12-panel baseline.

How Does the 13 Panel Differ From the 12 Panel Drug Test?

The 13 panel vs 12 panel drug test comparison comes down to one question: is fentanyl in the panel? The 12-panel dip card covers twelve substances including

• AMP
• BAR
• BUP
• BZO
• COC
• MDMA
• MET
• MTD
• OPI
• OXY
• PCP
• TCA
• THC.

Does the 12 Panel Drug Test Include Fentanyl?

The standard 12 panel drug test does not include a dedicated fentanyl (FEN) strip in this configuration.

The 13 panel drug test keeps the same 12-substance baseline and adds fentanyl as the 13th analyte.

12 Panel vs. 13 Panel

Why Add Fentanyl Testing?

Programs that need fentanyl screening should choose a panel with a dedicated FEN analyte.

This can be important for programs that:

• • • Monitor opioid use
  • • Work with high-risk populations
  • • Need broader drug coverage
  • • Want fentanyl-specific screening
  • Are reviewing their current testing panel

What About Federal Testing Rules?

Federal drug testing rules and authorized panels can change over time.

A program should not assume that moving from a 12-panel to a 13-panel automatically makes it compliant with a federal testing requirement.

Instead, check:

• • • The current federal rules
  • • The exact testing panel required
  • • The product’s intended use
  • • The product’s analytes
  • Applicable state requirements

Why Fentanyl Coverage Matters

Fentanyl can occur along with other substances.

For programs focused on opioid detection, a panel without FEN may leave a testing gap.

Adding a dedicated fentanyl strip can provide.

Does Tramadol Show Up on a Drug Test?

Tramadol usually requires its own drug test strip.

A standard OPI (opiate) test does not reliably detect tramadol. Tramadol has a different chemical structure from the drugs targeted by a standard OPI test.

Does Tramadol Show Up on an Opiate Test?

Usually, no.

The OPI strip is designed to detect opiates such as:

• • • Morphine
  • • Codeine
  • Related opiate metabolites

Tramadol is a synthetic opioid. It does not reliably trigger the OPI test.

This means a person taking tramadol may have a negative OPI result even when tramadol is present.

How Is Tramadol Detected?

A test needs a dedicated TRA strip to screen specifically for tramadol.

The 13 Panel Drug Test Dip Card with TRA, ETG, FEN and Adulterants includes a dedicated tramadol analyte.

The TRA cutoff for this configuration is 100 ng/mL.

Why Does This Matter?

Programs should not assume that a broad opioid panel will detect every opioid.

If tramadol testing is important, check that the test includes TRA.

This is especially useful for programs that monitor:

• • • Prescription drug use
  • • Pain management patients
  • • Medication compliance
  • • Substance use treatment
  • Workplace drug testing, when appropriate

Quick Answer

Does tramadol show up on a drug test?
Yes, but the test must include a dedicated tramadol analyte.

Does tramadol show up on an OPI test?
Not reliably. A standard OPI strip is not designed to specifically detect tramadol.

What should you look for?
Choose a drug test that lists TRA (tramadol) as one of its analytes.

Always check the product’s exact analytes, cutoff levels, intended use, and instructions before testing.

The PubMed research on tramadol immunoassay cross-reactivity documents that tramadol demonstrates low cross-reactivity with standard opiate immunoassays and requires a dedicated tramadol-specific antibody system for reliable urine detection. For pain management programs that prescribe tramadol and need to verify patient compliance, a panel without a dedicated TRA strip is providing no useful information about the prescribed medication. For employers in safety-sensitive industries where tramadol impairment is a documented concern, the standard OPI strip provides no protection against tramadol-impaired workers.

What Is TRA on a Drug Test?

TRA stands for tramadol.

Tramadol is a prescription pain medicine. It is used to treat moderate to moderately severe pain.

It is sold under brand names such as:

• • • Ultram
  • • ConZip
  • Generic tramadol

A drug test with a TRA strip can screen specifically for tramadol.

What Does TRA Detect?

The TRA strip is designed to detect:

• • • Tramadol
  • Tramadol’s main active metabolite, O-desmethyltramadol (M1)

The 13-panel dip card with TRA uses a 100 ng/mL cutoff in the referenced configuration.

Tramadol may be detectable in urine for about 1 to 4 days in many adults. The actual detection time can vary based on factors such as dose, frequency of use, metabolism, and kidney function.

Why Does Tramadol Need a TRA Strip?

Tramadol is different from many traditional opioids.

A standard OPI test is designed mainly to detect morphine and related opiates.

Because tramadol has a different chemical structure, it may not trigger a standard OPI immunoassay.

This means:

• • • OPI test: May not detect tramadol
  • TRA test: Specifically screens for tramadol

How Does Tramadol Work?

Tramadol has two main actions in the body.

• • • Acts on opioid receptors
  • Affects serotonin and norepinephrine levels

This makes tramadol different from traditional opioids such as morphine and oxycodone.

Why Is TRA Testing Important?

A standard opioid panel may not provide complete coverage for prescription pain medicines.

A dedicated TRA strip can help programs monitor tramadol use when it is part of their testing plan.

TRA testing may be useful for:

• • • Pain management programs
  • • Medication monitoring
  • • Substance use treatment programs
  • • Clinical drug screening
  • Other programs that need tramadol-specific testing

Quick Answer

What does TRA mean on a drug test?
TRA means tramadol.

Does an OPI test detect tramadol?
Not reliably. A standard OPI test is not designed specifically to detect tramadol.

What detects tramadol?
A drug test with a dedicated TRA strip is used to screen for tramadol.

Always review the product’s analytes, cutoff levels, instructions, and intended use before testing.

Programs that need both OXY compliance monitoring and TRA compliance monitoring in a single dip should use the 13 Panel TRA+ETG+FEN+ADLTX dip card.

What Is ADLTX on a Drug Test?

ADLTX stands for Adulterants Detection.

ADLTX is not a drug. It is a specimen validity check.

It helps check whether a urine sample appears normal and suitable for testing.

The referenced SM-DOA-3135EFAD3 dip card includes three specimen checks:

• • • Specific Gravity
  • • pH
  • Creatinine

These checks run along with the drug test.

How Does Adulteration Detection Work?

The adulteration test looks for signs that a urine sample may have been changed or diluted.

This can help identify problems before a drug result is reported.

1. Specific Gravity

Specific gravity measures how concentrated the urine is.

A very low result may indicate a diluted sample.

The referenced test uses levels such as:

• • • Below 1.003 — may indicate a very dilute specimen
  • Below 1.001 — may indicate an extremely dilute specimen

Low specific gravity can occur for many reasons. It should be reviewed with the other specimen validity results.

2. pH

pH measures whether the urine is acidic or alkaline.

The normal urine range is generally about 4.5 to 9.0.

A result outside this range may indicate an unusual specimen or possible adulteration.

3. Creatinine

Creatinine is another measure used to check urine concentration.

A very low creatinine result may indicate:

• • • Dilution
  • • An unusual specimen
  • Possible specimen substitution

Creatinine should be reviewed together with specific gravity and other validity results.

Why Is ADLTX Important?

Drug testing can be affected if a specimen is diluted or altered.

An adulteration check can help a testing program identify possible specimen problems.

It may help prevent an invalid or unusual specimen from being treated as a normal negative result.

What Happens if a Specimen Looks Invalid?

If specimen validity results show a problem, the collecting staff can follow the program’s procedures.

Depending on the testing rules, this may include:

• • • Flagging the specimen for review
  • • Reporting the specimen as invalid when appropriate
  • • Collecting a new specimen
  • Using an observed collection when required

The exact response depends on the testing program and applicable rules.

ADLTX at a Glance

Key Point

ADLTX is a specimen validity feature, not a drug analyte.

It helps programs check the quality and integrity of a urine specimen before interpreting the drug screening results.

Always follow the manufacturer’s instructions and the applicable testing rules when using adulteration or specimen validity checks.

How to Detect a Diluted Urine Drug Test Sample

A diluted urine sample contains more water than normal. This can lower the concentration of drug metabolites in the urine.

A drug test may then show a negative result even when a drug is present below the test’s cutoff level.

How Can Urine Become Diluted?

Drinking a large amount of water before testing can make urine less concentrated.

Other factors can also affect urine concentration, including:

• • • Fluid intake
  • • Time since the last urination
  • • Certain medicines
  • • Medical conditions
  • Normal differences between people

Because of this, a low concentration does not always mean that a sample was intentionally changed.

How Do You Check for a Diluted Sample?

A drug panel alone does not measure urine concentration.

A specimen validity test can provide additional information.

Common checks include:

• • • Specific Gravity: Measures urine concentration
  • • Creatinine: Provides another measure of urine concentration
  • pH: Checks whether the urine is within a typical pH range

Specific Gravity Testing

The specific gravity strip on the referenced SM-DOA-3135EFAD3 dip card checks urine concentration.

A low specific gravity result may indicate a dilute specimen.

For the referenced test:

• • • Below 1.003: May indicate a dilute sample
  • Below 1.001: May indicate an extremely dilute sample

The result should be reviewed with other specimen validity findings.

Why Does Dilution Matter?

Dilution can reduce the concentration of drug metabolites.

This may affect the result if the concentration falls below the test’s cutoff.

For this reason, a negative drug result should be considered along with the specimen validity results when required by the testing program.

What Happens When a Sample Is Dilute?

The next step depends on the

The Creatinine strip provides a parallel validity marker — creatinine below 20 mg/dL is defined as dilute under SAMHSA criteria, and creatinine below 2 mg/dL is defined as substituted. Programs using the tramadol 13 panel drug test — the 13-panel dip card with ADLTX — eliminate the most common specimen manipulation method without any additional equipment, additional strips, or additional cost beyond the per-card price. Probation programs, drug court monitoring, and correctional facilities where specimen manipulation is a documented ongoing concern benefit most from the ADLTX-integrated format.

Does the 13 Panel Drug Test Detect Fentanyl?

Yes. The 13 panel drug test includes a dedicated fentanyl (FEN) strip.

In the referenced 13-panel configurations, the FEN strip uses a 20 ng/mL cutoff.

What Does the FEN Strip Detect?

The FEN strip is designed to detect fentanyl.

It uses antibodies made to react with fentanyl-related compounds.

This provides fentanyl-specific screening that a standard OPI strip does not provide.

Why Is Fentanyl Testing Important?

A standard opiate test does not reliably detect fentanyl.

Fentanyl has a different chemical structure from traditional opiates such as morphine.

For programs that need fentanyl screening, a dedicated FEN analyte is important.

13 Panel Fentanyl Testing at a Glance

• • • Panel: 13-panel drug test
  • • Fentanyl analyte: FEN
  • • Cutoff: 20 ng/mL in the referenced configuration
  • • Purpose: Fentanyl-specific screening
  • Testing format: Urine dip card

Key Point

If your program needs fentanyl testing, confirm that the specific product includes FEN and check its listed cutoff level.

Always follow the manufacturer’s instructions and applicable testing requirements when using a drug test.

This threshold reflects fentanyl’s extreme pharmacological potency — the drug produces physiological effects at nanogram-scale blood concentrations, meaning even low urine concentrations are clinically significant. The HHS Federal Register notice of January 2025 mandating fentanyl addition to authorized federal testing panels effective July 7, 2025 establishes the regulatory basis for why the 13-panel’s integrated FEN strip represents the current federal policy standard for comprehensive opioid detection.

Does the 13 Panel Drug Test Detect Fentanyl?

Yes. The 13 panel drug test includes a dedicated fentanyl (FEN) strip.

In the referenced 13-panel configurations, the FEN strip uses a 20 ng/mL cutoff.

What Does the FEN Strip Detect?

The FEN strip is designed to detect fentanyl.

It uses antibodies made to react with fentanyl-related compounds.

This provides fentanyl-specific screening that a standard OPI strip does not provide.

Why Is Fentanyl Testing Important?

A standard opiate test does not reliably detect fentanyl.

Fentanyl has a different chemical structure from traditional opiates such as morphine.

For programs that need fentanyl screening, a dedicated FEN analyte is important.

13 Panel Fentanyl Testing at a Glance

• • • Panel: 13-panel drug test
  • • Fentanyl analyte: FEN
  • • Cutoff: 20 ng/mL in the referenced configuration
  • • Purpose: Fentanyl-specific screening
  • Testing format: Urine dip card

Key Point

If your program needs fentanyl testing, confirm that the specific product includes FEN and check its listed cutoff level.

Always follow the manufacturer’s instructions and applicable testing requirements when using a drug test.

Is the 13 Panel Drug Test CLIA Waived?

Yes. The referenced 13 panel CLIA Waived drug test (SM-DOA-2135CLIA) is described as CLIA Waived and FDA 510(k) cleared.

It is designed for use in approved clinical settings by trained staff. A laboratory certification is not required for waived testing when the test is used according to its clearance and applicable CLIA rules.

What Does the CLIA Waived 13 Panel Test Detect?

The referenced configuration includes:

• • • AMP — Amphetamines
  • • BAR — Barbiturates
  • • BUP — Buprenorphine
  • • BZO — Benzodiazepines
  • • COC — Cocaine
  • • FEN — Fentanyl
  • • MDMA — MDMA
  • • MET — Methamphetamine
  • • MTD — Methadone
  • • OPI — Opiates
  • • OXY — Oxycodone
  • • TCA — Tricyclic antidepressants
  • THC — Marijuana

The referenced configuration also lists EDDP and FEN at a 1 ng/mL cutoff.

Where Can It Be Used?

A CLIA Waived 13 panel test may be useful in approved clinical settings such as:

• • • Physician offices
  • • Occupational medicine clinics
  • • Addiction treatment programs
  • Other healthcare settings covered by CLIA

It can provide point-of-care screening for programs that need broader drug coverage.

Why Choose a 13 Panel CLIA Waived Test?

The 13-panel format can add fentanyl screening to a broader drug testing panel.

This may be useful for programs that need to monitor:

• • • Prescription drug use
  • • Opioid use
  • • Fentanyl exposure
  • Other drugs in the panel

Important

CLIA status applies to a specific product and configuration.

Before ordering, confirm:

• • • The exact product number
  • • CLIA Waived status
  • • FDA clearance
  • • Intended use
  • • Analytes and cutoff levels
  • Current federal and state requirements

Always use the test according to the manufacturer’s instructions and its cleared or authorized intended use.

The Forensic Use Only configurations (SM-DOA-2135FUO and SM-DOA-3135EFAD3) are appropriate for probation, corrections, law enforcement, and compliance settings that do not fall under CLIA jurisdiction. Programs uncertain about which classification applies to their setting should review the CLIA Waived verification guide at 12 Panel Now. The CDC’s waived test classification guidance provides the regulatory framework for confirming that a device used in a clinical setting has the appropriate CLIA Waived designation.

Who Uses the 13 Panel Drug Test Dip Card?

The 13 panel drug test dip card is used by pain management clinics, MAT programs, opioid treatment programs, occupational medicine departments, probation offices, correctional facilities, drug courts, sober living homes, and any program that needs the full 12-panel baseline plus dedicated fentanyl detection in a single dip — and by advanced compliance programs that additionally need tramadol monitoring, alcohol metabolite detection, and specimen validity checking.

Pain management clinics that prescribe tramadol as an adjunct or alternative analgesic to opioids use the TRA+ETG+FEN+ADLTX configuration because it simultaneously confirms tramadol compliance (TRA), screens for concurrent illicit opioid and fentanyl use (OPI, OXY, FEN), checks for BZO and BAR co-use risk, and validates the specimen has not been diluted or substituted (ADLTX).

Methadone treatment programs and buprenorphine clinics use the 13-panel CLIA Waived configuration because the integrated FEN strip brings their point-of-care screening into compliance with the post-July 2025 federal standard while maintaining the CLIA Waived status required for clinical administration. Probation programs and drug courts with documented tramadol misuse patterns in their supervised population use the TRA configuration alongside ADLTX to prevent the two most common forms of compliance avoidance: tramadol substitution for illicit opioids and specimen dilution.

Is the 13 Panel Drug Test Right for Workplace Drug Testing?

The 13 panel drug test may be a good choice for some workplace testing programs.

The right panel depends on the employer’s testing policy, workplace risks, and applicable rules.

Non-DOT Workplace Testing

Non-DOT employers can choose broader drug panels when allowed by their policies and applicable laws.

A 13-panel test can add fentanyl (FEN) to a broader drug screen.

It may be useful for employers that currently use a 12-panel test and want dedicated fentanyl screening.

DOT Workplace Testing

DOT-regulated employers must follow DOT testing rules.

The DOT testing panel is set by federal requirements.

Employers should not replace the required DOT panel with a 13-panel test.

A separate or supplemental test may be possible in some situations, but employers should confirm the current DOT rules before use.

Standard 13 Panel FUO

The referenced Standard FUO 13-panel format (SM-DOA-2135FUO) is listed at $1.29 per test.

It can provide:

• • • 13 drug analytes
  • • Dedicated fentanyl (FEN) screening
  • • A simple upgrade from a 12-panel format
  • A Forensic Use Only (FUO) option for appropriate non-clinical testing

Pricing can change. Confirm the current price before ordering.

13 Panel With TRA, ETG, FEN, and ADLTX

Another option includes:

• • • TRA — Tramadol
  • • ETG — Alcohol metabolite
  • • FEN — Fentanyl
  • ADLTX — Adulterant or specimen validity checks

This type of panel may be useful for employers that need broader testing.

For example, it may fit programs that need:

• • • Tramadol screening
  • • Alcohol monitoring
  • • Fentanyl screening
  • Specimen validity checks

Is the 13 Panel Right for Your Workplace?

Consider a 13-panel test if your program needs:

• • • Fentanyl testing
  • • Broader drug coverage
  • • Tramadol testing
  • • Alcohol monitoring
  • Specimen validity checks

Before ordering, confirm the:

• • Exact analytes

• • Cutoff levels

• • Product classification

• • Intended use

• Current federal and state requirements

The OSHA Drug-Free Workplace guidelines confirm that panel configuration for non-regulated employers should reflect the specific substance risk profile of the workforce. For DOT-regulated employers, the 13-panel dip card is appropriate for supplemental non-safety-sensitive screening outside the regulated program.

What Does the 13 Panel Drug Test NOT Detect?

The 13 panel drug test dip card does not detect kratom, gabapentin, K2 or synthetic cannabinoids, xylazine, ketamine, MDPV, psilocybin, LSD, delta-8 THC, norfentanyl (unless the CLIA Waived NFYL configuration is selected), or any substance beyond its thirteen dedicated strips and ADLTX validity markers.

The norfentanyl metabolite of fentanyl persists in urine longer than fentanyl itself — up to 96 hours versus 72 hours for fentanyl — but is only detected by the CLIA Waived variant that includes the NFYL strip alongside the standard FEN/20 strip. Programs that need norfentanyl detection alongside fentanyl for extended detection windows should select the CLIA Waived NFYL configuration or evaluate the 15 through 19 panel dip card formats that include NFYL as a standard strip.

Kratom detection requires a dedicated KRA strip first available in 16-panel and higher configurations. Gabapentin requires a GAB strip available in 15-panel and higher formats. For programs whose populations use any of these substances alongside the 13-panel baseline, the dip card format guide at 12 Panel Now provides a full comparison of available analyte configurations across the 13 through 19 panel tier.

Which 13 Panel Configuration Is Right for Your Program?

The best 13 panel drug test depends on your program and testing needs.

There are three main configurations to consider.

1. Standard FUO 13 Panel

Product: SM-DOA-2135FUO
Listed price: $1.29 per test

Choose this option if you need:

• • • Fentanyl testing
  • • PCP testing
  • • The standard 12-panel drug baseline
  • Forensic Use Only (FUO) testing

This format may be useful for:

• • • Probation programs
  • • Correctional facilities
  • • Workplace testing
  • Other non-clinical programs

It is a simple way to add fentanyl to a broader drug screen.

2. CLIA Waived 13 Panel

Product: SM-DOA-2135CLIA
Listed price: $1.29 per test

Choose this option if your program needs a CLIA Waived test for an approved clinical setting.

It includes fentanyl testing and is designed for programs that need broader drug screening.

It may be useful for:

• • • Physician offices
  • • Treatment programs
  • • Healthcare clinics
  • Other approved clinical settings

3. 13 Panel With Adulterants

Product: SM-DOA-3135EFAD3
Listed price: $1.89 per test

Choose this option if you need more than standard drug screening.

This configuration includes:

• • • TRA — Tramadol
  • • ETG — Alcohol metabolite
  • • FEN — Fentanyl
  • ADLTX — Adulterant or specimen validity checks

It may be useful for programs that need:

• • • Tramadol monitoring
  • • Alcohol abstinence testing
  • • Fentanyl screening
  • Specimen validity checks

Quick Comparison

Which One Should You Choose?

Choose Standard FUO if:
You need a broad drug screen with fentanyl and PCP for non-clinical testing.

Choose CLIA Waived if:
You need a properly classified waived test for an approved clinical setting.

Choose the Adulterants panel if:
You need fentanyl, tramadol, alcohol metabolite, and specimen validity testing in one card.

Important

Prices and product configurations can change. Confirm the current price, analytes, cutoff levels, product classification, and intended use before ordering.

Contact the 12 Panel Now wholesale team at 561-897-9238 or [email protected] to discuss which configuration is the right match for your specific program requirements.

How Accurate Is the 13 Panel Drug Test Dip Card?

The 13 panel drug test is designed for accurate screening when used correctly.

The manufacturer states that its 13-panel configurations provide up to high accuracy across the listed test strips when the test is performed according to the instructions.

Which Strips Need Extra Care?

Some strips have lower cutoff levels and require careful testing.

The referenced panel includes:

• • • BUP: 10 ng/mL
  • FEN: 20 ng/mL in the standard and ADLTX configurations

Follow the product instructions for:

• • • Dip time
  • • Read time
  • • Specimen level
  • • Storage
  • Result interpretation

How Long Should You Dip the Card?

For the referenced configuration:

• • • Dip the card for about 10 to 15 seconds
  • • Read the result at about 5 minutes
  • Do not interpret the result after 10 minutes

Following the correct timing can help reduce testing errors.

How Do You Read the Results?

Each drug strip has two areas:

• • • C = Control
  • T = Test

Negative Result

Two colored lines appear:

• • • One line at C
  • One line at T

A faint T line can still indicate a negative result when interpreted according to the manufacturer’s instructions.

Presumptive Positive Result

One line appears:

• • • A line at C
  • No line at T

This is a presumptive positive result. Confirmatory laboratory testing may be required before making important employment, medical, or legal decisions.

Invalid Result

No line appears at the C area.

This means the test is invalid.

The test should not be interpreted. Follow the manufacturer’s instructions for repeat testing with a new card and specimen when required.

What About ADLTX?

The ADLTX specimen validity strips on the SM-DOA-3135EFAD3 are read during the same testing period as the drug strips.

They are not read as a separate test.

These checks can provide information about

Any presumptive positive on any strip must be confirmed by GC-MS or LC-MS/MS laboratory analysis before any employment, clinical, or legal action is taken. The SAMHSA Drug-Free Workplace FAQ confirms that laboratory confirmation is mandatory before any consequential action on a positive rapid immunoassay result.

13 Panel Drug Test Dip Card vs 13 Panel Drug Test Cup

Both the dip card and the 13 panel drug test cup detect the same thirteen substances at equivalent immunoassay accuracy. The dip card formats starting from $1.29 are the lower-cost choice for high-volume monitoring programs. The cup format provides integrated collection, built-in temperature validation, and tamper-evident sealed design for chain-of-custody settings.

The 13 panel drug test cup at 12 Panel Now is available in multiple configurations including the standard cup, the ETG+FEN configuration, and the ADLTX cup format — all with the no-drip lid, built-in temperature strip, and photocopy-compatible result windows.

For rehabilitation programs and sober living homes running high-frequency testing where direct staff oversight of collection is standard, the dip card’s lower per-test cost provides meaningful savings at scale without sacrificing substance coverage. For compliance settings with legal accountability requirements, the cup’s specimen integrity features are the appropriate choice. Browse the full comparison at the 13 panel drug test category at 12 Panel Now.

Buying 13 Panel Drug Test Dip Cards in Bulk

At 12 Panel Now, the 13 panel drug test bulk and wholesale pricing is available from $1.29 per test for the Standard FUO and CLIA Waived configurations and from $1.89 for the TRA+ETG+FEN+ADLTX format, with 13 panel drug test wholesale orders shipping same-day before 3:00 PM EST and free shipping on qualifying bulk orders.

As the US-based manufacturer of the Serenity brand drug testing product line, 12 Panel Now carries millions of products in stock at all times with no backorders. Each card is individually foil-sealed with an 18 to 24 month shelf life. Store between 36 and 86 degrees Fahrenheit away from direct sunlight and humidity.

The FEN strip at 20 ng/mL and BUP strip at 10 ng/mL are the most temperature-sensitive analytes on the card — temperature-controlled bulk storage is recommended for programs ordering high volumes. Mixed SKU bulk orders combining any 13-panel dip card configuration with supplemental fentanyl strips or single-panel add-ons can be placed in a single order. Send us a competitor rate sheet and we’ll save you money. OEM, private label, and custom panel configurations are available.

Contact 561-897-9238 or [email protected].

13 Panel Drug Test Dip Cards at 12 Panel Now (Serenity Drug Test / Slash Medical), 801 N Congress Ave, Suite 101, Boynton Beach FL 33426. Manufacturer of the Serenity brand drug testing product line. Key products: SM-DOA-2135FUO (Standard FUO, AMP/BAR/BUP/BZO/COC/FEN/MDMA/MET/MTD/OPI/OXY/PCP/THC, from $1.29); SM-DOA-2135CLIA (CLIA Waived, adds TCA/1000, FEN/1 and EDDP, from $1.29); SM-DOA-3135EFAD3 (TRA/ETG/FEN/ADLTX FUO, AMP/BUP/BZO/COC/ETG/FEN/MDMA/MET/MTD/OPI/OXY/TRA/THC + 3 Adulterants, from $1.89). Regulatory references: SAMHSA Mandatory Guidelines 2025. HHS fentanyl authorization effective July 7, 2025. SAMHSA specimen validity criteria (Specific Gravity, pH, Creatinine). Quest Diagnostics 2025 Drug Testing Index. PubMed tramadol immunoassay cross-reactivity research. CDC CLIA Waived test classification guidance. OSHA Drug-Free Workplace guidelines