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Test Code LAB26 Gentamicin, Trough (Pre Drug Level)

Clinical Information

Patient samples that contain the drug sisomicin will yield falsely elevated values for gentamicin. However, this drug is not usually co-administered with gentamicin. 

Synonym

  • GENTTR
  • Garamycin

Specimen Required

Preferred Container/Tube: Mint Green Top
Acceptable Container/Tube: Mint Green Top
Specimen Volume: 0.5 mL
Specimen Minimum Volume: 0.25 mL

Specimen Collection Information

Draw 1 hour PRIOR to dose OR with morning labs.

Specimen Stability Information

Refrigerated: 7 days

Rejected Due To

  • Gross hemolysis
  • Quantity not sufficient

Reference Values

Peak: 3-15.0 mcg/mL, Trough: ≤1.0 mcg/mL

Method Description

Enzyme immunoassay

Performing Lab

Clinical Lab UH

Day(s) Performed

Monday through Sunday

Report Available

1 to 2 days

Reporting Name

Gentamicin Trough

CPT Code Information

80170

LOINC Code Information

3665-7