Test Code TOBT Tobramycin, Trough, Plasma or Serum
Methodology
Turbidometric ImmunoassayPerforming Laboratory
Aspen Valley HospitalPhysician Office Specimen Requirements
Submit only 1 of the following specimens:
Preferred:
Serum
Container/Tube: Orange-top tube(s)
Specimen: 2 mL (minimum volume: 0.5 mL) of serum
Transport Temperature: Ambient
Collection Instructions: Serum for a trough level is usually drawn 5 to 10 minutes before dose. Allow specimen to clot for approximately 10 minutes, spin down, remove serum, and place in separate plastic vial. If there is a delay in transport of >8 hours, send specimen refrigerated in ≤7 days.
Note: 1. Indicate serum on request form.
2. Label specimen appropriately (serum).
Alternate:
Plasma
Container/Tube: Light green-top (lithium heparin gel) tube(s) - Lavender-top (EDTA) tube or light blue-top (sodium citrate) tube is also acceptable.
Specimen: 2 mL (minimum volume: 0.5 mL) of lithium heparin plasma
Transport Temperature: Ambient
Collection Instructions: Plasma for a trough level is usually drawn 5 to 10 minutes before dose. Spin down immediately and send entire tube to laboratory. If there is a delay in transport of >8 hours, send specimen refrigerated in ≤7 days.
Note: 1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).
Reference Values
Therapeutic range: 0.5-2.0 µg/mLDay(s) Test Set Up
Monday through SundayTest Classification and CPT Coding
80200