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Order Code LAB4589 Gentamicin, Trough, Serum

Additional Codes

Test Name in EPIC

EPIC Test Code           

Mnemonic

RV GENTAMICIN, TROUGH

LAB4589

GENTT

 

Useful For

Monitoring levels of gentamicin to ensure appropriate therapy

Specimen Requirements

Special Note: Pharmacokinetic factors including dosage form, mode of administration and concomitant drug therapy can influence the appropriate time of sample collection following administration of gentamicin.

 

Specimen Type: Serum

Collection Container/Tube:

Preferred: Plain, red-top tube (SST unacceptable)

Specimen Volume: 2 mL

Pediatric (minimum) volume: 0.5 mL in a red top MICROTAINER tube

Specimen Stability

Specimen Type Temperature Stability             
Serum Ambient 2 hours
  Refrigerated (preferred) 7 days
  Frozen 14 days

Reference Values

  • Trough: < 2.0 µg/mL
  • Critical value (automatic call-back): ≥ 2.0 µg/mL (All ages)

Note: Trough concentration in excess of 2 µg/mL for longer than 10 days has been associated with toxicity.

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Ridgeview Medical Center Laboratory

Methodology

Two-point rate

Test Classification and CPT Coding

80170