Laboratory Medicine

Test Catalogue

Diazepam and metabolite
Test Name Diazepam and metabolite
Specimen Type/Requirements Container Type = 1 Red Top Minimum Testing Volume = 1mL Blood Tube must fill to at least ½ or greater of its vacuum capacity
Specimen Handling Collection Instructions: Collect sample in red top tube. Avoid gel-separator tube. Submit trough specimen (i.e., collected immediately before next dose). Write your initials, date and time of collection on the collection label. Laboratory Staff Instructions: Separate samples from cells as soon as possible. Stability: Separated from cells stable at room temperature for 14 days, refrigerated 14 days, frozen for 14 days. Rejection Criteria: Unlabeled or samples of non-sufficient quantity. Transportation: Send sample to core lab as soon as possible or ship frozen if transporting from an outside lab.
Required Documentation
Turnaround Time (TAT) 7 days (batched)	Test Utilization
Reference Value Diazepam + Nordiazepam (combined metabolite) Therapeutic: 100 – 2,500 ng/mL Toxic : >3,000 ng/mL
Test Code DIZM	Methodology LC-MS/MS
Testing Location SMH-Biochemistry	Other Information Last Updated: January 11, 2023

Diazepam and metabolite

Test Name

Diazepam and metabolite

Specimen Type/Requirements

Container Type = 1 Red Top

Minimum Testing Volume = 1mL Blood

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in red top tube. Avoid gel-separator tube. Submit trough specimen (i.e., collected immediately before next dose). Write your initials, date and time of collection on the collection label.

Laboratory Staff Instructions: Separate samples from cells as soon as possible.

Stability: Separated from cells stable at room temperature for 14 days, refrigerated 14 days, frozen for 14 days.

Rejection Criteria: Unlabeled or samples of non-sufficient quantity.

Transportation: Send sample to core lab as soon as possible or ship frozen if transporting from an outside lab.

Required Documentation

Turnaround Time (TAT)

7 days (batched)

Test Utilization

Reference Value

Diazepam + Nordiazepam (combined metabolite)
Therapeutic: 100 – 2,500 ng/mL
Toxic : >3,000 ng/mL

Test Code

DIZM

Methodology

LC-MS/MS

Testing Location

SMH-Biochemistry

Other Information

Last Updated: January 11, 2023