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HelpTest Code GNRPS Gentamicin, Random, Plasma
Specimen Required
Collection Container/Tube:
Preferred: Light-green top (lithium heparin plasma gel)
Acceptable: Green top (lithium heparin)
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. Gel tubes should be centrifuged within 2 hours of collection.
2. Green-top tubes should be centrifuged, and the plasma aliquoted to a plastic vial within 2 hours of collection.
Useful For
Monitoring adequacy of plasma concentration during gentamicin therapy in specimens for which no collection timing information is provided
Method Name
Turbidimetric Immunoassay
Reporting Name
Gentamicin, Random, PSpecimen Type
Plasma Li HeparinSpecimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Plasma Li Heparin | Refrigerated (preferred) | 7 days |
| Frozen | 28 days |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
GENTAMICIN, PEAK
Therapeutic: 3.0-12.0 mcg/mL
Toxic: >12.0 mcg/mL
GENTAMICIN, TROUGH
Therapeutic: <2.0 mcg/mL
Toxic: >2.0 mcg/mL
Day(s) Performed
Monday through Sunday
Report Available
Same day/1 to 2 daysPerforming Laboratory
MCHS- MankatoTest Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
80170
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| GNRPS | Gentamicin, Random, P | 35668-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| GNRPS | Gentamicin, Random, P | 35668-3 |