Gentamicin

Specimen requirements

Adult sample type: Serum (gold/yellow top SST)

Paediatric sample type: Plasma (orange top paediatric tube)

Collection requirements: No special requirements

Cost

Price on application

Turnaround time

Please see Turnaround times

Analytical method

Immunoassay

Analysis undertaken at these site(s)

John Radcliffe Hospital

Reference intervals

If continuing Gentamicin beyond 48 hours:

Once daily dosing (5-7mg/kg): interpret level using Nomogram in 'Antibiotic Guidelines, Intravenous Gentamicin in Adults' on the Clinical Intranet or at:

• http://ouh.oxnet.nhs.uk/Pharmacy/Mils/MILV1N2.pdf

Dosing in renal impairment (3mg/kg): repeat dose when TROUGH is less than 2 mg/L

In endocarditis, if synergy required

Trough	less than 1 mg/L
Peak (1 hour POST dose)	3-5 mg/L