Lorazepam

Alphabetical Test listing

Lorazepam-309

Test name:

Lorazepam

Test number:

309

Excellian order number:

80154.5

Abbreviation:

LOR

Alternate names:

Ativan

Useful for:

Therapeutic drug management

Specimen type:

Serum

Collection container:

Red serum vial/tube - 5 mL

Volume:

2.0 mL

Minimum volume:

0.5 mL

Collection instructions:

Trough levels are most reproducible

Processing instructions:

Allow sample to clot
Spin
Transfer serum to a Serum/plasma transfer vial/tube (MedTox), labelled as serum, within two (2) hours of sample collection

Transport container:

Serum/plasma transfer vial/tube (MedTox)

Alternate specimen type:

Heparin plasma

Alternate collection container:

Dk green heparin (Li or Na), no gel

Alternate collection instructions:

Immediately following collection, mix sample thoroughly by gently inverting 5 - 10 times, to prevent clotting

Alternate processing instructions:

Spin
Transfer plasma to a Serum/plasma transfer vial/tube (MedTox), labelled as the appropriate plasma type, within two (2) hours of sample collection

Transport and stability:

Refrigerated (preferred)

Ambient - 3 days

Frozen (OK)

Performing lab:

MedTox Laboratories (64): R-MX

Days set up:

Daily

TAT:

5 - 6 days

Method:

Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Reference ranges:

50.0 - 240.0 ng/mL

CPT codes:

G0480

Subject to medical necessity (Y/N):

Yes

LCD/NCD:

Medical necessity

Date created:

11/30/2001

Revised date:

03/10/2021

Review date:

05/11/2020