A client with a long history of smoking presents with progre…

A client with a long history of smoking presents with progressive shortness of breath and a barrel-shaped chest. Diagnostic testing shows destruction of alveolar walls, resulting in a reduced surface area for gas exchange. The nurse recognizes these findings are most consistent with which respiratory disease?

A client with a bacterial infection asks the nurse how antib…

A client with a bacterial infection asks the nurse how antibodies help fight off germs. The nurse explains that antibodies can attach to the pathogen and trigger another defense system that destroys it. Which immune component is activated by antibodies in this process?

A nurse explains to a client that the purpose of vaccines is…

A nurse explains to a client that the purpose of vaccines is to help the body “remember” how to fight an infection if exposed again in the future. Months later, the client is exposed to the same pathogen but does not become ill because the immune system responds quickly. Which cells are primarily responsible for this rapid, targeted response?