Sellotape Smear/Perianal swab
 (Microbiology)
Investigations Microscopic examination for Enterobious vermicularis ova

Enterobius vermicularis (thread or pin worm) is an intestinal parasite which causes perianal and perineal pruritis mainly in children. It has worldwide distribution. The female of the species deposits the ova on the skin in the anal area of the infected person during the night from where the ova may be collected.
Inform lab before sending No
Specimen type PERIANAL SWAB. Sellotape slides are no longer recommended
Ideal time to take specimen Early morning, as during the night is when the ova are deposited
Labelling requirements click here
How to take the specimen PERIANAL SWAB (Preferred)
  • Sample the perianal area, with a swab that has been moistened with saline, swab should be broken off into a container without transport medium, eg.a bijoux or universal bottle.

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    • Transport to the laboratory As soon as possible. If transport is delayed then refrigerate. Delays of over 48hrs are undesirable
    Test Times Monday to Friday
    Turnround 24 hours-excluding weekends
    Additional information It is important to provide full clinical details
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