Final answer:
Educating the client about managing cystic fibrosis through medication, pulmonary rehabilitation, and regular medical check-ups is crucial to maintaining independence after discharge.
Step-by-step explanation:
To maintain independence for a 16 year old client with cystic fibrosis being discharged, the most important action for the nurse is to ensure the client is well-educated about their condition and the self-care routines required to manage it. Education should cover the proactive use of antibiotics and other drugs to fight off infections, as well as the importance of pulmonary rehabilitation to maximize lung function. The nurse should also offer resources for ongoing support and ensure the client has a plan in place for regular medical check-ups to monitor lung health and manage any complications promptly.