Correct Answer: D

Rationale: Saturation of the perineal pad after a hysterectomy suggests excessive vaginal bleeding, which must be addressed immediately. Assessing for vaginal bleeding is the priority in this situation as it can lead to hypovolemic shock. Measuring urinary output, assessing for weakness or dizziness, and increasing IV fluids are important interventions but checking for vaginal bleeding takes precedence due to the risk of hemorrhage post-hysterectomy.

Correct Answer: B

Rationale: The correct answer is B: Serum ammonia level. Lactulose is used to lower serum ammonia levels in clients with chronic liver disease, particularly in cases of hepatic encephalopathy. Monitoring serum ammonia levels is crucial to evaluate the effectiveness of lactulose in managing hepatic encephalopathy. Choices A, C, and D are incorrect because they are not directly related to the action or evaluation of lactulose in chronic liver disease.

Correct Answer: A

Rationale: A pale foot with no pulse suggests a compromised blood supply, indicating a potential vascular emergency. The nurse's immediate priority is to notify the healthcare provider to address the situation promptly. Readjusting the traction, administering PRN medication, or waiting to reassess the foot later could lead to serious complications due to the compromised blood supply, making choices B, C, and D incorrect in this critical situation.

Correct Answer: C

Rationale: A potassium level of 6.2 mEq/L indicates hyperkalemia, which is dangerous and requires immediate treatment. Administering a potassium-binding medication will help lower potassium levels and prevent life-threatening complications.

Correct Answer: D

Rationale: The correct answer is D: 'Eat potassium-rich foods like bananas and oranges.' Thiazide diuretics can lead to potassium loss, so it is essential for clients to consume potassium-rich foods to maintain adequate levels. Choice A is incorrect because focusing solely on low carbohydrates and fats does not address the specific issue of potassium loss. Choice B is unrelated as vitamin K content is not a concern with thiazide diuretics. Choice C is incorrect as increasing salt intake would exacerbate hypertension and not prevent dehydration.