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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

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

CPT Codes

80170

Test Components

Gentamicin, µg/mL

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.

Specimen Processing

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

Specimen Stability

Refrigerated: 7 days

Frozen: 14 days