Test Code GENTP Gentamicin, Peak LAB28
Test Method
Turbidimetric Inhibition Immunoassay; Beckman DXC600
Specimen Requirement
0.5 mL of serum or plasma is required for testing.
Additional Specimen Collection Information
Collect blood in a lithium heparin green-top or red-top
tube.
Serum and plasma gel tubes are not acceptable. Lipemic samples
>
4+ turbidity must be cleared prior to analysis. It is
recommended
that the serum or plasma be separated from contact with cells
within 2 hours from time of collection. Serum or plasma should
be
stored refrigerated if assays are not completed within 8 hours.
If
assays are not completed within 48 hours, freeze the sample.
Reference Values
5-10 mcg/mL
-
Toxic Level: >12 mcg/mL
- The effective therapeutic concentration for pediatric
patients
may be higher than adults.
Performance
Testing is performed Monday through Sunday.
Routine: Typically completed within 4 hours after
the specimen arrives at the testing site.
Expedite: Typically completed within 2 hours after the
specimen arrives at the testing site.
STAT: Typically completed within 1 hour after the
specimen
arrives at the testing site.
Useful For
Monitoring adequacy of serum concentration during gentamicin
therapy
LOINC Code Information
3663-2 Gentamicin [Mass/Volume] In Serum Or Plasma-Peak
CPT Code Information
80170 Therapeutic Drug Levels; Gentamicin, peak