Correct Answer: A

Rationale: Patients prescribed methotrexate should be advised to take folic acid supplements as prescribed. Methotrexate can deplete folic acid levels, leading to side effects. By taking folic acid supplements as directed, the patient can reduce the risk of experiencing adverse effects associated with methotrexate therapy. It is important to note that the effects of methotrexate may not be immediate, so realistic expectations should be set with the patient. Alcohol should be avoided while taking methotrexate due to potential interactions and increased risk of liver toxicity. There is no specific recommendation to limit fluid intake to 1 liter per day in relation to methotrexate therapy.

Correct Answer: C

Rationale: Administering prescribed opioid analgesics is the most appropriate nursing intervention to alleviate severe abdominal pain in a patient with acute pancreatitis. Opioid analgesics help manage severe pain effectively in such cases. Encouraging oral intake of clear fluids may exacerbate symptoms due to the need for pancreatic rest. Placing the patient in a supine position can worsen the pain by increasing pressure on the abdomen. Applying a heating pad is contraindicated as heat can potentially increase inflammation and discomfort in acute pancreatitis.

Correct Answer: B

Rationale: A low-protein diet is crucial for patients with renal failure to reduce the generation of nitrogenous waste products like urea and creatinine, which the compromised kidneys struggle to eliminate effectively. By limiting protein intake, the production of these waste products is decreased, lessening the burden on the kidneys and helping to manage the progression of renal failure.

Correct Answer: C

Rationale: The correct answer is C: Hemoglobin level. Erythropoietin therapy is used to stimulate red blood cell production in patients with chronic kidney disease who often develop anemia due to reduced erythropoietin production by the kidneys. Monitoring the hemoglobin level is essential to evaluate the effectiveness of erythropoietin therapy as an increase in hemoglobin indicates improved red blood cell production and better management of anemia in these patients. Serum creatinine, white blood cell count, and serum potassium levels are important parameters to monitor in CKD patients but are not specific indicators of the effectiveness of erythropoietin therapy for managing anemia.

Correct Answer: A

Rationale: The correct answer is to avoid close contact with pregnant women for one week. This precaution is essential to prevent radiation exposure to vulnerable populations. Pregnant women and small children are more sensitive to radiation, making it crucial for patients undergoing radioactive iodine therapy to avoid close contact with them for a specified period.