Correct Answer: D

Rationale: The correct answer is D: Take iron supplements with vitamin C to improve absorption. Vitamin C enhances iron uptake, making it more bioavailable for the body. It is essential to avoid taking iron supplements with milk (choice B) as calcium-rich foods can hinder iron absorption. Taking iron supplements with meals (choice A) can help reduce stomach upset, but the optimal way to enhance absorption is with vitamin C. Black, tarry stools (choice C) are not a typical side effect of iron supplements and should be reported to the healthcare provider.

Correct Answer: B

Rationale: The correct answer is B. Rifampin can cause red-orange discoloration of bodily fluids, including urine, saliva, and tears. This is a harmless side effect, but clients should be informed beforehand to prevent alarm. Choice A is incorrect as orange-colored urine is not a sign of kidney dysfunction related to rifampin. Choice C is incorrect because rifampin is more commonly associated with liver toxicity rather than kidney dysfunction. Choice D is incorrect as vision changes are not a typical side effect of rifampin.

Correct Answer: B

Rationale: The correct instruction for a pregnant client experiencing heartburn is to eat small meals throughout the day to avoid a full stomach. This helps prevent the stomach from becoming overly full, reducing the likelihood of heartburn during pregnancy. Choices A, C, and D are incorrect. Eating spicy food can exacerbate heartburn, carbonated beverages may trigger heartburn due to gas, and avoiding fluids after meals does not directly address the issue of heartburn.

Correct Answer: C

Rationale: A blood pressure of 88/52 mmHg indicates hypotension, which is a sign of worsening septic shock. Hypotension can lead to organ failure and requires immediate intervention. Elevated heart rate (choice A), mild fever (choice B), and slightly increased respiratory rate (choice D) are common in septic shock and may not necessarily indicate a deteriorating condition as much as hypotension does.

Correct Answer: B

Rationale: Erythropoietin therapy stimulates red blood cell production in clients with chronic kidney disease. Hemoglobin levels should be monitored to assess the effectiveness of the therapy and ensure the client is not developing anemia. Increased hemoglobin levels indicate successful treatment, whereas very high levels may suggest erythropoietin is overcorrecting the anemia. Monitoring the white blood cell count is not directly related to erythropoietin therapy for anemia. Serum creatinine level is used to assess kidney function rather than the effectiveness of erythropoietin therapy. Platelet count is not typically affected by erythropoietin therapy and is not a key indicator of its effectiveness.