Pinworm Preparation
Also known as: Enterobius vermicularis Preparation, Enterobius Verm Exam, Cellulose Tape Test, Enterobiasis Test, Ova and Parasite, Pinworm Preparation
Use
Detect cases of pinworm infestation (enterobiasis), E vermicularis parasitic infestation
Special Instructions
The recommended method for diagnosing pinworm infection involves recovering eggs or female worms from the perianal region using a cellophane tape test. It's advised to perform the test immediately after the patient wakes up and before any bathing or defecation to maximize the recovery of eggs. If multiple family members are suspected of infestation, each should be tested separately.
Limitations
This examination specifically targets pinworm, thus a negative result does not completely rule out the possibility of parasitic infestation. Multiple tests may be necessary to confirm the presence of infection. Additionally, stool specimens are not suitable for pinworm detection and should not be used, as eggs are only rarely present in feces. It's also noted that Enterobius vermicularis can cause rare secondary infections such as appendicitis, salpingitis, and hepatic granuloma, which may not be detectable through this test. Therefore, clinical correlation is advised for a comprehensive diagnosis.
Methodology
Microscopy
Biomarkers
LOINC Codes
- 675-9
- 675-9
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen
Body Fluid
Volume
One slide or one pinworm paddle
Minimum Volume
Not provided
Container
Glass slide in slide transport or pinworm paddle
Collection Instructions
Collect specimen as soon as possible after patient arises and prior to defecation or bathing. Pat the perianal area with the sticky side of cellophane tape (do not use frosted tape), attach to a glass slide, and ship slide in a slide mailer. Alternatively, a pinworm paddle device may be used to collect specimen.
Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Use of nontransparent Scotch® Tape; Scotch® Tape on both sides of the slide; specimen that is not inside a covered container; use of frosted slide; tape sent sticky side up; unlabeled specimen or name discrepancy between specimen and request label