The nurse anticipates that a 16-year-old girl with infectious mononucleosis will be placed on bed rest to

A. Liver involvement (hepatomegaly) can occur in infectious mononucleosis, but bed rest does not prevent liver complications; monitoring liver function is more relevant. B. Joint involvement is not a typical complication of infectious mononucleosis, so this is not a rationale for bed rest. C. Splenomegaly is common in infectious mononucleosis, and the enlarged spleen is at risk for rupture, especially with physical activity or trauma. Bed rest is recommended to minimize risk of splenic injury, which can be life-threatening. D. Neck stiffness (cervical lymphadenopathy) may cause discomfort, but bed rest is not primarily to prevent neck irritation; this is a secondary consideration.