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Test Code GENL Gentamicin Level

Important Note

Specimens from patients receiving β-lactam antibiotics (penicillins and cephalosporins) must be analyzed immediately upon receipt or stored frozen to prevent in vitro inactivation of gentamicin.

Specimen Required

Lithium Heparin Plasma Separator Tube (GREEN) or

Serum Separator Tube SST (YELLOW)

CPT Code

80170

Specimen Handling & Stability

Handle and store specimens in stoppered containers to avoid contamination and evaporation.

 

Centrifuge specimens to remove the plasma/serum from the cellular material within 1 hour of collection.

 

Specimen Stability

*  Room Temperature: 2 hours

*  Refrigerated: 7 days

*  Frozen: 14 days

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