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Rifampin, Serum or Plasma-994

Test info

Test name:

Rifampin, Serum or Plasma

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Rifadin
Rimactane

Useful for:

Therapeutic drug management

Specimen

Specimen type:

Serum

Collection container:

Red serum vial/tube, 5 mL

Volume:

2.0 mL

Minimum volume:

0.5 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 2 hours of sample collection
Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum

Transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Alternate specimen type:

Plasma

Alternate collection container:

Dk green heparin (Li or Na), no gel

Alternate specimen volume:

2.0 mL

Alternate collection instructions:

Immediately following collection, mix sample by gently inverting 5 times

Alternate processing instructions:

Spin within 2 hours of sample collection
Transfer plasma to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as plasma

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Ambient (preferred) - 3 days

Refrigerated – 14 days

Frozen – 14 days

Reason for rejection:

Gel-barrier tubes

Performance

Performing lab:

LabCorp (809675): R-NX

TAT:

10 - 14 days

Method:

High-pressure liquid chromatography with ultraviolet detection (HPLC/UV)

Clinical and Interpretive info

Reference ranges:

The effective concentration range of rifampin is dependent on the minimum inhibitory concentration (MIC) for the pathogen being treated.

Billing

CPT codes:

80299

LOINC code:

4021-2

Tracking

Date created:

05/30/2023

Review date:

05/31/2023