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HelpTobramycin Trough Level
eD-H Order Code
LAB38
Specimen Collection Information
| Specimen | Minimum Test Volume | Container | Special Handling |
|---|---|---|---|
| Blood | 0.1 ML | OFFSITE: Freeze for Transport |
Specimen Transport Temperature
Offsite: Freeze for Transport
Reference Ranges / Critical Values
| Assay | Gender | Age Range | Normal Range | Critical Values | Units |
|---|---|---|---|---|---|
| Tobra Tr | All | 0 Minutes – 150 Years | 0.3 - 2.0 | >2.0 | mg/L |
Specimen Stability
Additional Specimen Instructions
Trough level should be drawn 0-90 minutes (30 minutes optimal) before the dose.. Samples for antibiotic therapeutic drug monitoring are ideally drawn via peripheral venipuncture. When peripheral venipuncture is not possible refer to DH procedure ID 234 for guidance on appropriate collection site and steps to adequately flush the catheter/line. Subcutaneous ports (e.g. Mediports) should be avoided for sample collection due to a high risk of sample contamination.
Interpretive Data
| Assay Display | Interpretive Data |
|---|---|
| Tobra Tr | Tobramycin trough therapeutic range: 0.3-2.0 mg/L Tobramycin trough levels greater than 2 mg/L are associated with higher risk of nephrotoxicity. |
Day(s) Performed
Monday through Sunday; continuously
Performing Lab Section
Chemistry
CPT Code
80200