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Test Code LAB38 Tobramycin, Trough

Notes:

SAMPLING TIMES: Trough specimen should be drawn at steady-state, 24 to 48 hrs after starting treatment and immediately prior to next dose

Collection:

Specimen: Blood 

Preferred: Lt Green w/ Gel - Li Hep

Acceptable: SST or Red Top

Specimen Volume: 5 mL; Minimum 0.5 mL

 

Pediatric Collection:

One Lt Green w/ Gel - Li Hep, SST, or Red Top microtainer filled to 500 uL.

Stability:

Once serum/plasma is separated from cells:

 

Ambient: 8 Hours

Refrigerated (preferred): 1 Week

Frozen: 2 Weeks

Turn Around Time (TAT):

STAT: 1 HOUR

Routine: 4 HOURS

Test Availability:

24 hours a day / 7 days a week

Reference Interval:

Therapeutic Range
  Trough   < 2.0 mcg/mL
Peak   5.0 - 10.0 mcg/mL (Peak may be higher with once daily dosing)  

Additional Test Codes

TOBRA T

Performing Laboratory Section

Chemistry / UMC MAIN LABORATORY