Final answer:
The correct instruction for a client with type 1 diabetes mellitus traveling by airplane is to keep insulin and supplies in their carry-on bag to ensure availability and proper storage temperature. It is also crucial to continue monitoring blood glucose levels and administering insulin as needed.
Step-by-step explanation:
For a client with a new diagnosis of type 1 diabetes mellitus planning to travel by airplane, it is important to provide accurate information to ensure their health and safety during the flight. It is essential to instruct the client to "Keep your insulin and supplies in your carry-on bag." This ensures that insulin is available at all times during the flight and is protected from extreme temperatures that might occur in checked luggage compartments. Moreover, it is critical for individuals with type 1 diabetes to frequently monitor their blood sugar levels using a meter to manage their condition effectively. Insulin injections are necessary to decrease blood glucose levels after consuming a meal, particularly a large or high-glucose meal. Skipping insulin doses or failing to check blood glucose levels while in flight can lead to unmanaged hyperglycemia and potential medical emergencies. Always having insulin available and maintaining regular glucose monitoring is vital for controlling blood sugar levels and preventing complications.