A 4-Year-Old Boy Attended Day Care 3 Days Per Week

Multiple Choice

A 4-year-old boy attended day care 3 days per week.He was irritable,and his parents noticed that he had persistent perianal itching.A sticky paddle was pressed against the perianal region and sent to the laboratory for testing.The eggs microscopically observed would most likely have which one of the following morphologic features?

A) Long with a short buccal cavity
B) Thin shell with internal granules
C) Bipolar plugs
D) Flat-sided,football-shaped