A 4-year-old child with pain and itching around the rectum has just been diagnosed with a pinworm infestation. The physician prescribes mebendazole (Vermox). When teaching the child’s parents about the treatment regimen, the nurse should emphasize which instruction（）
A. Look for white patches in the child’s mouth.
B. Make sure that all family members are treated.
C. Encourage the child to drink lots of apple juice.
D. Limit dairy products until the pinworms are eradicated.
参考答案：B
解析：
Because pinworms are highly contagious, all family members should be treated simultaneously. White patches signal oral candidiasis, which is unrelated to pinworm infestation or treatment. Drinking apple juice and limiting dairy products don’t affect the outcome of treatment of pinworms.