Gentamicin, Pre Dose




Test Mnemonic

GENTPR

CPT Codes

  • 80170 - QTY (1)

LOINC ®

3665-7

Aliases

  • Gentamicin, Trough

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLPlasmaSodium or Lithium heparin (Green) RefrigeratedDo not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumNo additive (Red) RefrigeratedDo not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate.
1 mLPlasmaEDTA (Lavender) RefrigeratedDo not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mL     

Stability

Environmental Condition Description
AmbientAfter separation from cells: 48 hours
RefrigeratedAfter separation from cells: 1 week
FrozenAfter separation from cells: 2 weeks

Days Performed

Sun - Sat

Turnaround Time

8 hours

Methodology

Name Description
Kinetic Interaction of Microparticles in a Solution 

Reference Range

Gentamicin, Pre Dose
Sex Age From Age To Type Range Range Unit
   Years99 YearsNormal1.0 - 2.0ug/mL
   Years99 YearsUrgent> 2.0ug/mL

Special Info

Do not collect in a gel separator tube. The aminoglycoside sisomicin cross-reacts with the QMS Gentamicin assay due to its structural similarity. Therefore, the results of this assay cannot be used to accurately quantify gentamicin serum or plasma levels in patients on sisomicin in combination with gentamicin.

Clinical Info

Draw just prior to next infusion