Correct Answer: B

Rationale: The correct instruction that the nurse should include is to rotate injection sites with each dose. This practice is essential to prevent tissue damage and ensure proper insulin absorption. Option A is incorrect because insulin should not be injected into the muscle, but rather into the subcutaneous tissue. Option C is incorrect as insulin should be stored in the refrigerator to maintain its effectiveness. Option D is incorrect as massaging the injection site after administration can lead to faster absorption and potentially hypoglycemia.

Correct Answer: C

Rationale: The correct answer is C: Irritability and agitation that worsen throughout the day. These symptoms are concerning in a client diagnosed with delirium as they may indicate an exacerbation of the condition or an underlying cause that requires immediate attention. Option A describes symptoms that resolve with rest, which may not be as urgent. Option B provides a normal blood pressure reading, which is not typically associated with immediate attention in delirium cases. Option D describes mild confusion during specific hours, which may not be as critical as worsening symptoms throughout the day.

Correct Answer: A

Rationale: The correct answer is A: Administer oxygen and provide breathing exercises. These interventions are essential in managing COPD as they help improve lung function and oxygenation. Choice B is incorrect as suctioning airway secretions and encouraging coughing are not typically indicated for COPD patients. Choice C is incorrect as while administering bronchodilators is common in COPD treatment, monitoring oxygen saturation alone is not a comprehensive intervention. Choice D is incorrect as restricting fluids is not a standard intervention for COPD, and encouraging mobility, although beneficial, is not as directly related to managing COPD symptoms as administering oxygen and providing breathing exercises.

Correct Answer: B

Rationale: The best approach to assist a client in performing self-care after an acute myocardial infarction, especially when the client expresses concern about fatigue, is to gradually resume self-care tasks while focusing on rest periods. This approach allows the client to build confidence in managing their self-care activities while also addressing the issue of fatigue. Choice A is incorrect as it focuses on asking for assistance rather than promoting self-care. Choice C is inappropriate as it suggests delegating the client's self-care tasks to assistive personnel instead of empowering the client. Choice D is incorrect as it can lead to deconditioning and is not conducive to the client's recovery process.

Correct Answer: D

Rationale: Immunocompromised clients have weakened immune systems, making them more susceptible to infections. The pneumococcal polysaccharide vaccine is recommended for these individuals to help prevent pneumococcal infections, which can be severe and life-threatening. Varicella, Influenza, and Hepatitis B vaccines are not specifically indicated for immunocompromised clients. Varicella contains a live virus that can cause infections in immunocompromised individuals. Influenza is generally recommended for all individuals over 6 months of age but does not have the same priority as the pneumococcal vaccine for immunocompromised clients. Hepatitis B vaccine is crucial for preventing Hepatitis B infection but is not directly related to the increased infection risk faced by immunocompromised clients.