Clonazepam (Blood)

Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

CLON

Test Code (Numeric Code)

0841

Laboratory Handling

Separating

Centrifuge and separate blood as soon as possible after collection.

Laboratory

LabPLUS Toxicology

Sample Stability

Stable for at least one week at 2-8°C and one month at -20°C

Synonyms

Benzodiazepines

Turnaround Time

1 week

Performed Weekly.

Specimen Type

  • Plasma
  • Serum

Specimen Requirements

Tube/Container Type:

Preferred
  • Plain (Red Top)
Acceptable
  • Lithium Heparin - Non-gel (Green Cap)
Preferred Sample Volume (ml)

4

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • Plain(Microtainer)
Preferred Sample Volume (ml)

0.5

Pre-testing Requirements

The quoted therapeutic range is for trough concentrations; specimens should be collected shortly before administering the next dose of the drug.

Last updated: 06/08/2026