Defined substance or medicine measurement with collection context and clinical review.
The clinical question
A platform name does not guarantee assay performance, interpretation or forensic use.
What to discuss next
Ask about the specific indication, intended scope, responsible clinician or laboratory, and the availability of the pathway. The team must confirm arrangements before care or testing can be planned.
These linked method descriptions explain their specimen, analytical scope and limits. The status of a method and the availability of a service are separate considerations.
definitive-toxicology / Toxicology
Definitive toxicology
Planned
Targeted substance identification or measurement with a defined specimen, panel and reporting scope.
Question
Which specified drug or metabolite needs a definitive analytical answer?
Specimen
Urine or another assay-validated human matrix
Preparation
Document prescribed medicines and use the collection instructions for the selected matrix; chain-of-custody needs are separate.
Platform
Targeted LC-MS/MS pathway
Analytical scope
Drug and metabolite list to be validated and released
Interpretation limits
A concentration does not automatically establish impairment, exact dose, timing or adherence. Substances outside the panel are not excluded.
therapeutic-drug / Therapeutic monitoring
Therapeutic-drug measurements
Planned
A medicine-specific measurement tied to collection time and clinical context.
Question
Could a timed concentration help the clinician assess a specific medicine?
Specimen
Drug-specific serum, plasma or whole blood
Preparation
Record dosing and collection times as requested by the ordering clinician. Do not alter a dose for this website.
Platform
Assay-specific LC-MS/MS or validated clinical platform
Analytical scope
Selected prescribed medicines; no released menu yet
Interpretation limits
Different medicines, sampling times and matrices require different interpretation. The result does not independently determine a dose.