Skip to page content

Microbiology

Notes

The information given here is intended for use by healthcare professionals. Please see Lab Tests Online-UK for more general advice, links and background.

otitis externa

Indications for testing include otitis externa and otitis media with perforation

Sample requirements

Standard charcoal transport swab

Black top charcoal swab

or

Plain wire swab

Orange wire swab

Insert swab into external auditory canal

Place swab into transport medium

Wire swabs must be returned in a tube of charcoal transport medium

Fastidious organisms will nor survive on dry swabs

Required information

  • Relevant clinical details:
    • otitis media
    • evidence of perforation
    • otitis externa
    • presence of grommets
  • Recent, current and intended antibiotics

Storage/transport

Store and transport at room temperature. Samples should be transported to the laboratory with minimal delay.

Turnaround time

2 - 4 days