A client with chronic obstructive pulmonary disease (COPD) is receiving home oxygen therapy. What is the most important instruction the nurse should provide?

Correct Answer: C

Rationale: The correct answer is C: 'Do not smoke while using oxygen.' Smoking while using oxygen can lead to a serious fire hazard, as oxygen supports combustion. This instruction is crucial to prevent potential harm to the client. Choices A, B, and D are incorrect. Using oxygen at the highest flow rate tolerated can be harmful, avoiding wearing oxygen during physical activity may limit the client's mobility unnecessarily, and storing oxygen tanks in a cool, dark place, although important, is not as critical as the instruction to avoid smoking while using oxygen.

Correct Answer: C

Rationale: Choice C is the correct answer because eating regular meals and snacks is crucial for maintaining stable blood sugar levels in individuals with diabetes. This approach helps prevent spikes and drops in blood sugar, promoting better management of the condition. Choices A, B, and D are incorrect. Avoiding all carbohydrates is not recommended as they are a major energy source and can be part of a balanced diet; eating whatever one wants while relying solely on medication can lead to uncontrolled blood sugar levels and complications; decreasing sugary foods intake can actually contribute to high blood sugar levels rather than preventing low blood sugar.

Correct Answer: D

Rationale: When administering medication to children, it is crucial to ensure the correct dosage to prevent dosing errors. Double-checking the dosage calculations with another nurse can help verify the accuracy of the prescribed dose, reducing the risk of medication errors. While checking the child's weight (Choice A) is important for dosage calculation, it alone may not ensure the correctness of the dosage. Verifying the medication order with a pharmacist (Choice B) is essential, but it may not directly address the accuracy of dosage calculations. Consulting the child's parents (Choice C) is not a standard practice for verifying medication dosages and should not be solely relied upon for ensuring the correct dosage.

Correct Answer: D

Rationale: The best intervention when an elderly client is having trouble remembering to take their medications is to implement all of the above options. Setting up a pill organizer helps in organizing and remembering medication schedules. Involving family members in care ensures additional support and reminders. Arranging for a home health aide can provide direct assistance and supervision. Implementing all these strategies together can significantly improve medication adherence, especially in clients with memory issues. Each option plays a crucial role in addressing different aspects of the problem, making 'Implement all of the above' the most comprehensive and effective choice.

Correct Answer: D

Rationale: To effectively prevent type 2 diabetes, individuals should focus on a combination of lifestyle modifications. Increasing physical activity helps maintain a healthy weight and improves insulin sensitivity. Reducing dietary sugar intake can lower the risk of developing diabetes by managing blood sugar levels. Regular health screenings are crucial for early detection and timely intervention. Emphasizing all these modifications together provides a comprehensive approach to diabetes prevention. Choices A, B, and C are all important components of a healthy lifestyle that can contribute to reducing the risk of type 2 diabetes.