| Ordering Code | 444P |
|---|---|
| Test Name | Gentamicin (Peak) |
| Alias | Peak Garamycin Peak Gentak |
| Preferred Specimen | Plasma |
| Preferred Container | Lithium Heparin PST (Green) |
| Other Specimen/Container | Serum in Plain (Red), Serum in SST (Gold) |
| Optimum Volume | 0.5 mL |
| Collection Instructions | Collect peak specimen at the end of a 60-minute IV infusion, 30 minutes after the end of a 30-minute IV infusion, or 60 minutes after the IM dose. |
| Handling Instructions | Send aliquot if transport time >24 hours. |
| Transport Requirements | Oahu: Refrigerated Airline: Frozen |
| Specimen Stability | Refrigerated: 24 Hours (Centrifuged, unaliquoted gel separator tubes) 1 Week (Aliquot) Frozen: 1 Month (Aliquot) |
| Rejection Criteria | Grossly hemolyzed, Insufficient quantity, Specimen older than stability limits, Uncentrifuged gel separator tube specimens >2 hours old, Unaliquoted gel separator tube specimens >24 hours old |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Immunoturbidimetric |
Reference range(s)
The reference ranges listed below are valid on this date of December 12, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Gentamicin (Peak) | ALL | 5.0-10.0 | >= 12.0 | 5.0-10.0 | >= 12.0 | ug/mL |
