单选题 The nurse is caring for a 10-year-old child with rheumatic fever. While obtaining the child's health history from the mother, the nurse should ask if the child recently had which illness?
A. Strep throat.
B. Influenza.
C. Chickenpox.
D. Mononucleosis.

【正确答案】 A
【答案解析】Rheumatic fever typically follows an infection with group A beta-hemolytic streptococcus, as in strep throat, impetigo, scarlet fever, or pharyngitis. Influenza, chickenpox, and mononucleosis are caused by viruses and don't lead to rheumatic fever.