Pinworm Preparation

Test ID: 

705864

CPT code:

87172

Synonyms:

•Enterobius vermicularis preparation
•Enterobius Verm Exam
•Cellulose Tape Test
•Enterobiasis Test
•Ova and Parasite, Pinworm Preparation
•Scotch® Tape Test

Clinical Use:

Detect cases of pinworm infestation (enterobiasis), E vermicularis parasitic infestation.

Additional Information:

The most satisfactory means of diagnosing pinworm infection is by the recovery of eggs or female worms from the perianal region. Only 5% to 10% of infected persons have demonstrable eggs in their stools. If feces is submitted for examination, only the surface should be sampled. Enterobiasis often is present in multiple family members; therefore, it is recommended that all members of the family be tested. The responsible parent should be instructed how to collect samples, using one kit per individual. Female worms or parts of them may be demonstrated on the tape by microscopic examination. The proportion of positive specimens correlate with severity of disease. Eggs, if present, may be immature, embryonated (with viable or dead larvae), or (if the specimen is several days or more old) empty egg shells. Enterobius vermicularis has been reported as a rare cause of appendicitis, salpingitis, epididymitis, and hepatic granuloma. Diagnosis at colonoscopy has also been reported.

Specimen Type:

 

Requested Volume: 

One slide

Container Type: 

Glass slide in slide transport

Collection:

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.

Storage Instructions:

Maintain specimen at room temperature.

Rejection Criteria:

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.

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