Correct Answer: B

Rationale: The correct answer is B. In palliative care, a nurse's primary role is to coordinate patient care and provide pain management. While emotional support (Choice A) is a crucial aspect of palliative care, it is not the primary role of a nurse in this setting. Administering medications and treatments (Choice C) is part of the nurse's responsibilities but not the primary role. Conducting research (Choice D) is important for advancing palliative care but is not the primary role of a nurse providing direct patient care in this context.

Correct Answer: A

Rationale: Before a person becomes violent, observable behaviors may include tense shoulders, clenched fists, a blank stare, and being positioned with one foot in back and an arm pulled back. Wandering is not typically associated with threatening behaviors signaling imminent violence. DelBel (2003) suggests that strategies such as relaxed body language, maintaining physical distance, and silence can help de-escalate an agitated individual's response.

Correct Answer: C

Rationale: The correct answer is C, an elderly client awaiting a hip replacement. This choice is most likely selected for case management because hip replacements are common surgical procedures with high volume in hospitals, making it appropriate for case management. Choices A, B, and D involve acute care conditions but do not typically require the same level of coordination and management that a hip replacement case would. Therefore, they are less likely to be selected for case management.

Correct Answer: C

Rationale: When a patient taking metformin develops an allergic rash from an unknown cause and is prescribed prednisone, the nurse should anticipate that the patient may require administration of insulin while taking prednisone. Prednisone can increase blood glucose levels by antagonizing the effects of insulin, leading to hyperglycemia. Therefore, the patient may need additional insulin to manage blood sugar levels effectively. The other options are incorrect as prednisone would not directly cause a need for a higher-calorie diet, acute hypoglycemia, or rashes caused by a metformin-prednisone interaction.

Correct Answer: B

Rationale: The correct answer is B. Amitriptyline is a tricyclic antidepressant that works by inhibiting the reuptake of serotonin and norepinephrine, which helps in reducing the transmission of pain impulses to the brain. Choice A is incorrect because amitriptyline primarily works on pain transmission rather than directly on depression. Choice C is inaccurate as amitriptyline's mechanism of action is not related to correcting blood vessel changes. Choice D is partially true as amitriptyline can improve sleep, but the primary mechanism related to pain relief is by preventing pain impulses from reaching the brain.