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Test Code: Genta Preferred Name Gentamicin

Results Avail After Hours:Yes

Urgent:1 hour

Test Frequency:All hours

Routine:4 hours

MBS Status:Medicare Item

Min. Re-Test Interval:N/A

Public price:

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Test Tubes

Specimen Type	Specimen Volume	Tube Type
Blood (adult)	5 mL	SST 5 mL (Biochem) with GEL (Dark Yellow Top)
Blood (paediatric)	500 µL	SST with gel 600 uL Paed (Red or Yellow top)
Blood (neonatal)	500 µL	SST with gel 600 uL Paed (Red or Yellow top)

COLLECTION NOTES

Ward to stipulate on request form if "pre-dose" or "post-dose".
Random levels- take as requested.

Pre-dose (trough level) - immediately before next dose is given.
Post-dose (peak level) - 30 minutes after the end of an IV dose or 60 minutes after an IM dose.

Route of administration, dose given and time of last dose must be noted on request slip.

GENERAL NOTES

ONCE DAILY DOSING:
Single serum level collected 6-14 hours post-dose is compared to the graph on page 232 of the Australian "Therapeutic Guidelines Antibiotic" and dose adjusted accordingly.

8-12 HOURLY DOSING:
Recommended trough < 2 mg/L
Recommended peak > 8 mg/L

For advice on collection times, contact the Therapeutic Advisory Service (pager 0282).