Which of these would be an appropriate assignment for the LPN?

The appropriate assignment for the LPN in this context is a 21-year-old client with cystic fibrosis. This choice aligns well with the LPN's training and scope of practice, which includes providing care for clients with chronic illnesses and stable conditions.

Cystic fibrosis is a genetic condition that requires ongoing management, including monitoring symptoms, administering medications, and providing education on lifestyle adjustments. LPNs are equipped to handle such tasks effectively, particularly in stable cases where the care regimen is already established.

Assignments involving acute conditions or more unstable patients, such as those recovering from major surgeries or facing immediate respiratory crises, typically require the higher level of assessment and critical thinking of an RN. In this scenario, the clients with the femur fracture and those experiencing an asthma attack or post-operative state might present challenges that require more extensive nursing interventions, typically outside the LPN's designated responsibilities. Consequently, selecting the client with cystic fibrosis showcases the LPN's role in delivering supportive care while effectively managing established health plans.