Correct Answer: A

Rationale: The most critical lifestyle change for a patient with hypertension is to reduce salt intake. Excessive salt consumption can lead to increased blood pressure levels. While limiting alcohol consumption (Choice B) and regular exercise (Choice C) are also beneficial for managing hypertension, reducing salt intake has a more direct impact on blood pressure control. Avoiding high-cholesterol foods (Choice D) is important for heart health but may not have as significant an impact on blood pressure as reducing salt intake.

Correct Answer: D

Rationale: The patient is showing signs of a possible surgical site infection, including redness, purulent drainage, tenderness, elevated temperature, and increased white blood cell count. These symptoms suggest the need for immediate action to address a potential complication. Utilizing SBAR to notify the primary health care provider is crucial as it allows for effective communication of the patient's condition and the need for further assessment and intervention. Reevaluating the temperature and white blood cell count later, checking the solution used for skin preparation, or planning to change the dressing do not address the urgent need for intervention and communication with the healthcare provider.

Correct Answer: B

Rationale: The correct answer is B. The nurse can safely remove restraints once no aggressive behavior is observed after releasing two extremity restraints for an hour. Choice A is incorrect because the removal of restraints should be based on the client's behavior rather than just the effect of medication. Choice C is incorrect as exploring reasons for aggressive behavior should be done before or during the intervention, not as a condition for removing restraints. Choice D is incorrect since an apology from the client does not guarantee a change in behavior or indicate that it is safe to remove the restraints.

Correct Answer: B

Rationale: Tachycardia and low blood pressure are indicative of worsening dehydration in a patient. Tachycardia is the body's compensatory mechanism to maintain cardiac output in response to decreased intravascular volume, while low blood pressure reflects inadequate perfusion due to decreased fluid levels. Bradycardia and shallow respirations are not typical findings in worsening dehydration, and clear lung sounds do not directly correlate with the severity of dehydration.

Correct Answer: B

Rationale: The correct answer is to assist the patient to sit down slowly. This intervention is appropriate for a patient experiencing dizziness when standing up, as it helps prevent falls due to orthostatic hypotension. Encouraging deep breaths (Choice A) may not address the underlying cause of dizziness, which is related to postural changes. Instructing the patient to use a walker for support (Choice C) or teaching the patient how to change positions safely (Choice D) are not the most immediate and direct interventions to address the immediate risk of falling when feeling dizzy upon standing.