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Linezolid Level-994

Test info

Test name:

Linezolid Level

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

pharmacokinetics (Linezolid, Level)
mycobacteria (Linezolid, Level)
Zyvox (Linezolid, Level), HPLC (Linezolid, Level),
LNZL
PKLZD

Useful for:

Linezolid is an oxazolidinone antibiotic used primarily for treating multidrug-resistant Gram-positive infections, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE) infections

Specimen

Specimen type:

Serum

Collection container:

Red serum vial/tube, 10 mL

Volume:

10 mL

Minimum volume:

2 mL

Collection instructions:

Immediately following collection, mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection
Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as serum
Freeze

Transport container:

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Transport and stability:

Frozen (preferred)

Ambient - 24 hours

Reason for rejection:

Gel tubes
Specimens thawed greater than 24 hours

Performance

Performing lab:

National Jewish Health via LabCorp (851592); R-NX

TAT:

9 - 13 days

Method:

High Performance Liquid Chromatography (HPLC)

Clinical and Interpretive info

Reference ranges:

See report

Billing

CPT codes:

80299

Tracking

Date created:

02/25/2026

Review date:

02/25/2026