Test Code TOBRA Tobramycin, Random, Peak, or Trough

Important Note

**Please see information for therapeutic ranges below:

Therapeutic Trough Less Severe Infections: <1.0 µg/mL

Therapeutic Trough Life-Threatening Infections: <2.0 µg/mL

Toxic Trough: >2.0 µg/mL

Therapeutic Peak Less Severe Infections: 4.0 – 8.0 µg/mL

Therapeutic Peak Life Threatening Infections: 8.0 - 12.0 µg/mL

Toxic Peak: >12.0 µg/mL

**Critical value information (Trough and Peak only):

Trough >2.0 µg/mL

Peak >12.0 µg/mL

Infectious

Meditech Mnemonics:

TOBRA

Preferred Specimen:

1mL Lithium Heparin plasma

Acceptable Specimen:

1mL serum from a non-gel tube

Minimum Volume:

0.5mL serum (volume does not include repeat or reflex testing)

Setup Schedule:

SUN-SAT

Transport Container:

Transport Tube

Preferred Transport Temperature:

Frozen

Specimen Stability (after centrifugation):

Per manufacturer: Test immediately or Freeze

Willis Knighton Medical Center

2600 Greenwood Road

Shreveport, LA 71103