Correct Answer: C

Rationale: Evaluating hemoglobin A1c levels is the most appropriate intervention to assess glycemic control in a client with type 2 diabetes mellitus. Hemoglobin A1c levels reflect the average blood glucose control over the past 2-3 months, providing valuable information for monitoring and managing diabetes.

Correct Answer: C

Rationale: The ANA's Scope and Standards of Nursing Practice are essential guidelines for nursing practice in various specialties, including mental health. The document outlines the expectations and responsibilities of nurses in providing high-quality care within their specific practice areas. In the context of opening a mental health services department, using the Scope and Standards specific to psychiatric-mental health nursing would ensure that the unit's nursing guidelines align with best practices and professional standards in mental health care.

Correct Answer: B

Rationale: The correct technique for using a metered-dose inhaler involves compressing the inhaler while slowly breathing in through the mouth. This method helps ensure that the medication reaches deep into the lungs, allowing for optimal bronchodilation effect. Inhaling quickly through the nose or filling the lungs with air before compressing the inhaler are not recommended techniques for using a metered-dose inhaler effectively.

Correct Answer: B

Rationale: When a client expresses the desire to not be resuscitated, it is essential to inquire if this decision has been discussed with their healthcare provider. This is important to ensure that the client's wishes are appropriately documented and legally binding through the healthcare provider's guidance. It is crucial that healthcare decisions, especially those involving life-saving measures, are well-communicated and documented to respect the client's autonomy and ensure their wishes are honored.

Correct Answer: A

Rationale: Black sticky stool (melena) is a sign of gastrointestinal bleeding and should be reported to the health care provider promptly.