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Test Code LAB4095 GENTAMICIN LEVEL, RANDOM

Specimen Type

Preferred Sample: Lithium Heparin Plasma (Mint Green Top, Dark Green Top)
Alternative Sample: Serum (SST, Gold, Corvac, Tiger, Red Top Tube)

Specimen Volume

1 mL

Minimum Volume

0.5 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Specimen Stability

Refrigerated: 7 days

Frozen: 14 days

Specimen Processing

Remove the plasma or serum from the cells, clot or gel as soon as possible before storing.

Method

Colorimetric

Reference Ranges

Gentamicin µg/mL:

        Random: <10.0

        Trough 0.5 – 2.0

        Trough Toxic: >2.0

        Peak 5.0 – 10.0

        Peak Toxic: >12.0

Synonyms

Garamycin, Single

Test Components

Gentamicin, µg/mL

CPT Codes

80170

Test Limitations

Studies have shown that therapeutic drug levels may be altered in serum/plasma that remains in contact with separator gel. Therapeutic drug levels collected in an SST or PST should be run within 24 hrs of collection.