A young client in the clinic has a rash, cough, coryza, and fever that the parent says spiked on day 5 of the rash. The client also had conjunctivitis. What illness would the nurse expect the health care provider to diagnose?

A. Chickenpox typically presents with an itchy vesicular rash in different stages of development, usually starting on the trunk and face, but it is not usually associated with cough, coryza, or conjunctivitis. B. Scarlet fever presents with a fine, sandpaper-like rash, fever, and sore throat but lacks the combination of cough, coryza, and conjunctivitis. C. Measles (rubeola) is characterized by the “three Cs”: cough, coryza (runny nose), and conjunctivitis, followed by a maculopapular rash. Fever often spikes around day 3–5 of the rash. Koplik spots on the buccal mucosa are also a distinguishing feature. D. Rubella generally causes a mild rash and low-grade fever; it rarely produces the pronounced cough, coryza, or conjunctivitis seen in measles.