A 4-year-old boy who is in day care 3 days per week is irritable and scratching the area around his anus.What morphologic characteristics would most likely be observed on microscopic examination of the appropriate specimen?
A)Large eggs,proglottid shape
B)Large eggs with a terminal spine
C)Two individual hooklets
D)Football-shaped eggs with one flattened side

Question

Quizplus · Accepted Answer

The causative agent of pinworm is E.vermicularis.Diagnosis of pinworm infection is usually made on the basis of the recovery of typical eggs,which are described as thick-shelled,football-shaped eggs with one slightly flattened side.Each egg often contains a fully developed embryo and will be infective within a few hours after being deposited.

A 4-Year-Old Boy Who Is in Day Care 3 Days