Special Precautions/Comments:

N.B.  The recommended specimen for Threadworm/Pinworm is a perianal swab. The swab should be moistened in saline and rubbed around (but not inside) the anus. The swab should then be sent to the laboratory in a universal containing a small amount (~5ml) of sterile saline.

Sellotape slides will be accepted but are not the preferred specimen. Clear sellotape should be applied to the perianal region, pressing firmly against perianal folds. Smooth tape onto a microscope slide, adhesive side down.

Method:  Light microscopy. Calibration: N/A.  EQA scheme: UKNEQAS Faecal Parasitology. IQC: N/A.

Interpretation: Where ova, cysts or parasites are seen an organism identification will be provided (positive). Samples will be reported as NOT seen where ova, cysts or parasites are not present (negative).

Additional Information:

Background information: Enterobius vermicularis is a nematode referred to as human pinworm, or threadworm. Enterobiasis is frequently asymptomatic, but the most common symptom is perianal pruritus (anal itching).