Patricia was called at work by a woman at the local day care center. She told Patricia to come and pick up her son because he was not feeling well. Her son, 3½-year-old Marshall, had been feeling tired and achy when he woke up. While at day care, his cheeks had become red, and he was warm to touch. He did not want to play with his friends, and by the time Patricia arrived, he was crying. Later that afternoon, Marshall’s condition worsened. He had fever, chills, a sore throat, runny nose, and a dry hacking cough. Suspecting Marshall had influenza, Patricia wrapped him up and took him to the community health care clinic.
- Why did Marshall’s presentation lead Patricia to think he had influenza and not a cold?
- Why is it important to medically evaluate and diagnose a potential influenza infection?
- Describe the pathophysiology of the influenza virus. Outline the properties of influenza A antigens that allow them to exert their effects in the host.
- Marshall may be at risk at contracting secondary bacterial pneumonia. Why is this so? Explain why cyanosis may be a feature associated with pneumonia.