The nurse administers epoetin alfa to a client who has chronic kidney disease (CKD). Which laboratory test value would the nurse monitor to determine this drug's effectiveness?

Rationale:
A. Checking distal pulses in the left arm is a safe and appropriate nursing action. It helps assess for adequate circulation beyond the AV fistula site and ensures that the vascular access has not compromised blood flow to the distal extremity.

B. Using the right arm for a blood pressure reading is appropriate and safe. Blood pressure measurements, venipunctures, or IV insertions should never be done on the arm with the AV fistula to avoid causing clot formation, vessel damage, or access loss.

C. Palpating the access site for a bruit or thrill is an important routine assessment to verify the patency and proper functioning of the fistula. The presence of a thrill (vibration) and bruit (swishing sound) indicates adequate blood flow through the access.

D. Administering intravenous fluids through the AV fistula is unsafe and contraindicated. The AV fistula must be used only for hemodialysis by trained personnel. Using it for IV fluids or medications increases the risk of infection, thrombosis, or permanent damage to the access site, which could compromise future dialysis treatments.

Rationale:
A. Iron is essential for the effectiveness of epoetin alfa, a synthetic form of erythropoietin that stimulates red blood cell production in the bone marrow. Clients with chronic kidney disease (CKD) often have low erythropoietin levels and iron deficiency, which can limit the drug’s effectiveness. Adequate iron intake supports hemoglobin synthesis and ensures that newly produced red blood cells are healthy and functional. The nurse should encourage consumption of iron-rich foods such as lean meats, eggs, legumes, and fortified cereals or the use of prescribed iron supplements.

B. Sodium should be restricted in CKD because excess sodium can cause fluid retention, hypertension, and edema, worsening cardiovascular strain and contributing to further kidney damage. Increasing sodium intake would counteract fluid balance goals in these clients.

C. Protein intake is usually limited in CKD to reduce the accumulation of nitrogenous waste products such as urea and creatinine. Although protein is essential for maintaining muscle mass, excessive intake can increase the kidney’s workload and accelerate the decline in renal function.

D. Potassium should be restricted in CKD because the kidneys cannot adequately excrete it. Elevated potassium levels (hyperkalemia) can lead to dangerous cardiac dysrhythmias or cardiac arrest. Therefore, the nurse should teach the client to avoid potassium-rich foods such as bananas, oranges, and potatoes.