Blood test
Provides the most complex and precise results. Used for detailed analysis, especially for tracking specific medications and when the highest possible precision is required.
Why choose blood testing?
Blood testing is the most precise method for measuring exact concentrations of substances. Unlike saliva and urine tests, blood analysis can show current impairment and provide quantitative results that are important for medical follow-up.
Exact concentrations
Results within 3 days with laboratory verification.
Advantages of blood testing
Blood analysis offers unique advantages that no other sample type can match
Most precise results
Blood tests provide the most accurate measurement of substance levels in the body and show current impairment.
Shows metabolites and concentrations
Enables quantitative analysis that shows exact concentrations of substances and their breakdown products.
Best for medication follow-up
Ideal for following up on medication treatment and verifying that prescribed doses are being followed.
Hardest to manipulate
Blood tests are virtually impossible to manipulate as sampling is performed by healthcare professionals.
Strongest legal validity
Blood test results have the highest evidentiary value in legal contexts and employment law processes.
What can blood tests detect?
Approximate detection times – shorter than other sample types but shows current impairment
Cannabis (THC)
6-24 hours
Amphetamine
12-24 hours
Methamphetamine
12-24 hours
Cocaine
12-24 hours
Opiates
6-12 hours
Benzodiazepines
6-48 hours*
MDMA (Ecstasy)
12-24 hours
Buprenorphine
24-48 hours
Tramadol
12-24 hours
Fentanyl
12-24 hours
GHB
4-8 hours
Alcohol (EtG/PEth)
Up to weeks**
* Benzodiazepines: Varies significantly depending on type and half-life
** Alcohol markers: CDT and PEth can show use weeks back
Special analyses via blood test
Blood tests enable advanced analyses that are not possible with other sample types
Alcohol markers
Shows long-term alcohol use over weeks to months.
- CDT (Carbohydrate Deficient Transferrin)
- PEth (Phosphatidylethanol)
- Gamma-GT
- EtG (Ethyl Glucuronide)
Medication concentrations
Exact quantification for medication follow-up.
- Benzodiazepines
- Opioids
- ADHD medications
- Antiepileptics
Anabolic steroids
Special analysis for doping control.
- Testosterone
- Nandrolone
- Stanozolol
- Other AAS
How the sampling works
A simple and smooth process from sampling to results when the sample is sent to the laboratory.
Booking
Sampling is booked with healthcare professionals or via our partner for on-site sampling.
Identification
ID is verified and documented to ensure correct identity.
Sampling
The blood sample is taken by licensed healthcare professionals using established techniques. Multiple tubes may be taken if needed.
Handling
Samples are labeled, registered and packaged according to strict procedures to guarantee traceability.
Laboratory analysis
The sample is analyzed using LC-MS/MS technology at Synlab in Germany for highest precision.
MRO review
A Medical Review Officer (MRO physician) reviews and interprets the result medically.
When is blood testing best suited?
Blood testing is the optimal choice when precision and quantification are critical factors.
- Medication follow-up – Verify that patients are following prescribed medication
- Alcohol control – Long-term markers like CDT and PEth show use over time
- Legal investigations – When highest evidentiary value is required in legal contexts
- Medical investigations – Detailed toxicological analysis when needed
- Doping control – Analysis of anabolic steroids and other doping substances
Important to consider
Blood tests have shorter detection times than saliva and urine tests for most substances. This is because the blood test shows what is currently in the bloodstream, rather than what has been excreted via saliva or urine. For historical detection, urine tests are recommended, while blood tests are best for showing current impairment or performing quantitative analyses.
Need blood test analysis?
Contact us for advice on how blood testing can suit your business. We'll help you choose the right testing solution and can arrange sampling through our partners.