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Mayo Clinic Laboratories

Test Code TPEAK Tobramycin Level, Peak, Serum or Plasma

Methodology

Immunoassay

Specimen Requirements

A peak level should be drawn 30 minutes after completion of infusion of an intravenous dose or 60 minutes after an intramuscular or oral dose of tobramycin.
Note:  Label specimen appropriately “peak.” 

Container/Tube:

Preferred: Lithium heparin (light green-top)

Acceptable: Serum Gel

Draw blood, spin down and send 1 mL  of plasma or serum

Reject Due To

 

Hemolysis

Mild:

ok

Gross:

ok

Lipemia

Mild:

ok

Gross:

ok

Icterus

Mild:

ok

Gross:

Reject

 

Reference Values

Therapeutic range:  5-10 µg/mL

Day(s) Test Set Up

Monday through Sunday

CPT Coding

80200

Performing Laboratory

Huntsville Hospital Laboratory

Secondary ID

HHA1406 - Peak

LOINC Coding

Test Name LOINC Code

Tobramycin Level, Peak, Serum or Plasma

 4057-6

 

Specimen Stability Information

 

Specimen Type

Temperature

Time

Serum or Plasma (lithium heparin)

Refrigerated, spun

3 days