Correct Answer: A

Rationale: The nurse manager is utilizing the competing conflict-resolution strategy. Competing involves making decisions based on one's preferences without considering the opinions or feelings of others. In this scenario, the nurse manager is unilaterally implementing changes despite opposition, demonstrating a competitive approach. Collaborating involves working together to find a mutually beneficial solution, compromising involves finding a middle ground acceptable to both parties, and cooperating involves working together towards a shared goal. These options are not applicable in this situation as the nurse manager is imposing her preferred changes without regard for others' input.

Correct Answer: B

Rationale: The correct answer is to initiate cardiac monitoring. Severe hypokalemia can lead to life-threatening arrhythmias, making cardiac monitoring the priority to detect and manage any cardiac complications. Starting oxygen, seizure precautions, or bed rest are not the immediate priority actions for severe hypokalemia.

Correct Answer: A

Rationale: The correct answer is A: 'Decreased self-care in activities of daily living related to fatigue.' Patients with fibromyalgia commonly experience fatigue, which can lead to decreased ability to perform self-care activities. This nursing diagnosis addresses a direct consequence of fibromyalgia. Choices B, C, and D are incorrect because they do not directly correlate with the common manifestations of fibromyalgia. Impaired mental functioning related to electrolyte imbalances and increased vigilance secondary to electrolyte imbalances are not typical presentations of fibromyalgia. 'At risk for a swallowing disorder related to fibromyalgia' is not a common nursing diagnosis associated with fibromyalgia; swallowing disorders are not a primary symptom of this condition.

Correct Answer: B

Rationale: The best argument for lower patient-to-nurse ratios is that they decrease patient mortality. Choice A is incorrect because having more patients can lead to increased workload and decreased attention per patient. Choice C is incorrect as adequate nurse levels can indeed impact the prevalence of infections. Choice D is incorrect as community nursing ratios can impact MRSA rates due to potential transmission risks in healthcare settings.

Correct Answer: A

Rationale: The correct answer is A. Having a client on airborne precautions wear a mask when out of their room is appropriate to prevent the spread of infection. Choice B is incorrect because the healthcare provider, not the client, wears an N95 respirator mask for a client on droplet precautions. Choice C is incorrect because negative-pressure airflow rooms are used for clients with airborne infections, not compromised immunity. Choice D is incorrect because visitors, not clients, should wear a mask when visiting a client on contact precautions.