Gentamicin, Pre Dose
Test Mnemonic
GENTPR
CPT Codes
- 80170 - QTY (1)
LOINC ®
3665-7
Aliases
- Gentamicin, Trough
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Sodium or Lithium heparin (Green) | Refrigerated | Do not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Refrigerated | Do not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate. | |
| 1 mL | Plasma | EDTA (Lavender) | Refrigerated | Do not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | After separation from cells: 48 hours |
| Refrigerated | After separation from cells: 1 week |
| Frozen | After separation from cells: 2 weeks |
Days Performed
Sun - Sat
Turnaround Time
8 hours
Methodology
| Name | Description |
|---|---|
| Kinetic Interaction of Microparticles in a Solution |
Special Info
Do not collect in a gel separator tube. The aminoglycoside sisomicin cross-reacts with the QMS Gentamicin assay due to its structural similarity. Therefore, the results of this assay cannot be used to accurately quantify gentamicin serum or plasma levels in patients on sisomicin in combination with gentamicin.
Clinical Info
Draw just prior to next infusion