Tobramycin, Trough (Client 53380)

Test Code

32708

CPT Codes
Restricted Client Use<br>**All other clients should order test code 8577**

Preferred Specimen

1 mL serum collected in a red-top tube (no gel)

Patient Preparation
Collect as a trough just prior to next dose

Minimum Volume

0.2 mL

Other Acceptable Specimens

Plasma collected in a sodium or lithium heparin (green-top) tube, EDTA (lavender-top) tube, fluoride/oxalate (gray-top) tube, or 3.2% sodium citrate (light blue-top) tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 7 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Serum separator tube

Methodology
Immunoassay

Setup Schedule

Sets up 5 days a week.

Report Available

Reports in 2 to 3 days.

Clinical Significance

Tobramycin is an aminoglycoside antibiotic used in the treatment of gram-negative bacterial infections, especially Pseudonomas, Proteus, Klebsiella and also Staphylococcus. Tobramycin is potentially nephrotoxic and ototoxic. Serial monitoring of peak and trough serum levels may provide the clinician with information to maintain safe and therapeutic levels.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.