Your results are usually on your secure dashboard within 2 working days of the sample, often the next day. Some markers take longer. Assessed by a BIG-registered physician.

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Select a standard panel or build your own screening. We then create your lab referral.

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Within 1 business day you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed from the next business day.

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Show the barcode on your phone and bring a valid ID. No BSN? Then bring your printed referral form instead. Done in under 15 minutes.

View your report

Your results are usually on your secure dashboard within 2 working days of the sample, often the next day. Some markers take longer. Assessed by a BIG-registered physician.

Ready to order a blood test? Order online and choose a location during checkout.

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Build your own drug test in Utrecht

Choose individual components, taken at a certified location in Utrecht.

Drug Screening

CDT (Carbohydrate-Deficient Transferrin)

A CDT blood test measures carbohydrate-deficient transferrin, a biomarker that indicates chronic heavy alcohol consumption over the preceding weeks. CDT is considered one of the most specific markers for sustained excessive alcohol intake.

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Drug Screening

Cocaine Metabolite

Cocaine is a stimulant drug from coca leaves, and according to the Trimbos Institute it works for 30 to 60 minutes. According to the Trimbos Institute, the body quickly breaks cocaine down into metabolites, breakdown products, of which benzoylecgonine stays in the body considerably longer than cocaine itself. According to the Trimbos Institute, after those 30 to 60 minutes a user is not yet sober and cannot, for example, drive safely yet. According to the Trimbos Institute, regular cocaine use can quickly lead to psychological dependence, and according to the NVKC a drug test usually looks for traces of use in the urine. Star-SHL uses a cut-off of 150 ug/l for cocaine in urine, lowered from 300 ug/l as of 1-12-2020.

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Drug Screening

Ketamine

A ketamine urine test is a qualitative screening that detects the presence of ketamine or its metabolites in urine. Ketamine is a dissociative anaesthetic used medically for anaesthesia and pain management, but may also be used as a recreational substance.

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Drug Screening

Amphetamines

An amphetamines urine test is a qualitative screening that detects the presence of amphetamine, methamphetamine, MDMA (ecstasy), and related compounds or their metabolites in urine. This test covers a broad class of central nervous system stimulants.

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Drug Screening

3-MMC

3-MMC is, according to a Dutch study from 2026, a synthetic cathinone and an isomer of mephedrone (4-MMC): 3-MMC has the same atoms as mephedrone, with one group in a different place. According to that study, 3-MMC became popular in the Netherlands because of its stimulant effect and because it was legal at first. According to the Trimbos Institute, 3-MMC can bring cheerfulness, an upbeat feeling, less anxiety and more self-confidence. According to the Trimbos Institute, 3-MMC can also bring muscle and jaw tension, a dry mouth, restlessness and sleeplessness, and craving, the urge to use again and again. Only a test shows whether 3-MMC has been in the body; in a laboratory, that is possible in blood and urine. Unilabs publishes no cut-off or unit for 3-MMC in urine and gives "n.aant.", not detectable, as the expected result of its MMC panel. This 3-MMC test looks for 3-MMC in urine.

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Drug Screening

LSD

An LSD urine test is a qualitative screening that detects the presence of lysergic acid diethylamide (LSD) or its metabolites in urine. LSD is a potent synthetic psychedelic substance that produces effects at very low doses.

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Drug Screening

GHB

A GHB urine test is a qualitative screening that detects the presence of gamma-hydroxybutyrate (GHB) in urine. GHB is a central nervous system depressant that occurs naturally in the body in trace amounts but may also be used as a recreational substance.

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Drug Screening

Phenibut

Phenibut is a substance that resembles GABA, a messenger substance of the nervous system, and according to a 2024 review it acts mainly on GABA-B, GABA-A and beta-phenethylamine receptors. In Eastern European countries, phenibut is a registered prescription medicine according to a 2024 article, used against anxiety, insomnia and alcohol withdrawal among other things. With long-term use, phenibut can cause tolerance according to the review, and stopping suddenly can trigger a withdrawal syndrome that can need treatment. Only a laboratory test shows whether phenibut is in the body, and a standard drug screen does not look for it, according to the review. None of the laboratory guides read for phenibut names a reference value: Unilabs looks for phenibut in a urine screen for new psychoactive substances, and Diagnostiek voor U reports phenibut in urine in micrograms per millilitre (µg/mL).

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Drug Screening

6-MAM (Heroin Marker)

A 6-MAM urine test is a qualitative screening that detects the presence of 6-monoacetylmorphine (6-MAM) in urine. 6-MAM is a unique metabolite of heroin (diacetylmorphine) and its presence confirms heroin exposure specifically, rather than general opiate use.

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Drug Screening

Opiates

An opiates urine test is a qualitative screening that detects the presence of opiate compounds such as morphine, codeine, and their derivatives in urine. Opiates are a class of substances derived from the opium poppy or their semi-synthetic analogues.

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More on drug testing and detection windows

Evidence-based articles on detection times, testing methods and reading your result.

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Drug test in Utrecht

Locations by province

Blood tests in Utrecht

Core 5-Panel

Extended 10-Panel

Alcohol (CDT) Test

Cocaine Screening

Ketamine Screening

Amphetamine Screening

Screening in 4 steps

Choose your substances

Receive your lab referral

Get tested at a lab near you

View your report

Choose your substances

Receive your lab referral

Get tested at a lab near you

View your report

Build your own drug test in Utrecht

CDT (Carbohydrate-Deficient Transferrin)

Cocaine Metabolite

Ketamine

Amphetamines

3-MMC

LSD

GHB

Phenibut

6-MAM (Heroin Marker)

Opiates

More on drug testing and detection windows

How long does a drug work, and how long does it stay detectable?

How long do drugs stay detectable?

How long are benzodiazepines detectable?

How long is cannabis (THC) detectable?

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