Gentamicin, Serum, Peak
Also known as: Garamycin®, Gentak®
Use
This aminoglycoside is used to treat serious infections caused by aerobic gram-negative bacilli (eg, a number of the Enterobacteriaceae, P aeruginosa). These include lower respiratory tract, intra-abdominal, soft tissue, bone or joint, wound, and complicated urinary tract infections; bacteremias; and meningitis (by intrathecal administration).
Special Instructions
Peak levels must be ordered using Test No. 007162. Label tubes clearly as “peak.”
Limitations
Serum or plasma must be accurately timed: after IM injection (45–60 minutes), or post IV infusion (30 minutes after a 30-minute infusion or immediately after a 60-minute infusion). Gel‑barrier tubes are not recommended due to absorption of the drug by the gel, potentially lowering measured levels. Hemolysis or lipemia may interfere.
Methodology
Immunoassay
Biomarkers
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.3 mL
Container
Red‑top tube or green‑top (heparin) tube. Do not use a gel‑barrier tube.
Collection Instructions
Transfer separated serum or plasma to a plastic transport tube; draw peak sample 45‑60 minutes after IM injection, 30 minutes after end of 30‑minute IV infusion, or immediately after 60‑minute IV infusion.
Storage Instructions
Room temperature
Causes for Rejection
Gel‑barrier tube; hemolysis; lipemia
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |
Other tests from different labs that may be relevant