Final answer:
The correct answer is c. "We need to maintain respiratory precautions and a quiet environment for at least 2 weeks once home."
Step-by-step explanation:
The correct answer is c. "We need to maintain respiratory precautions and a quiet environment for at least 2 weeks once home."
This statement indicates a need for further instructions because pertussis, also known as whooping cough, is highly contagious and can be transmitted through coughing. The convalescent stage is the final stage of the infection, marked by a chronic cough. During this stage, it is important to continue respiratory precautions to prevent the spread of the disease to others.
Statements a, b, and d are all correct and aligned with proper home care instructions for a child with pertussis.