Test Details
Mnemonic
5FL
Ordering Code
3502845
CPT-4 Code(s)
80299
Specimen Information
Patient Preparation
Please provide time and date of last dose and a list of all antibiotics that the patient is receiving or has received in the past 48 hours.
Collect
Red top
Specimen Preparation
Centrifuge, aseptically separate serum from cells and send 2.0 mL serum frozen in a screw capped plastic vial.
Minimum Volume
1.0 mL
Transport Temperature
Frozen
Rejection Criteria
Plasma
Stability
Room temperature: 2 hours
Refrigerated: 24 hours
Frozen: 7 days
Refrigerated: 24 hours
Frozen: 7 days
Methodology
Bioassay
Reference Range
30 - 45 μg/mL with a 2 g PO dose
60 - 80 μg/mL with a 100 mg/kg/day PO dose
60 - 80 μg/mL with a 100 mg/kg/day PO dose
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes