Sterile pre‑packed kits (Fig. 2.17) are convenient for culture studies of material removed from the ear canal. Most of these incorporate a suitable transport medium, such as Stuart's transport medium, so that even if the swab is delayed on the way to the laboratory an accurate specimen of pathogenic bacteria or fungal micro‑organisms will still be obtained.
Culture kit and suction tubes. From above: two‑part culture kit; Zoellner suction tube; Bellucci suction tube; Verhoeven suction tube with House cut‑out adapter