A nurse is caring for a client diagnosed with chronic renal disease. The nurse should recognize that which of the following medications is contraindicated for clients with chronic renal disease?

A. Administration of erythropoietin (Epoetin): In chronic renal disease, the kidneys may not produce enough erythropoietin, leading to anemia. Epoetin is a synthetic form of erythropoietin that stimulates red blood cell production and is commonly used to treat anemia in these clients.

B. Transfusion of red blood cells (RBCs): While transfusion of RBCs may be necessary in severe cases of anemia or acute blood loss, it is not the first-line treatment for anemia related to chronic renal disease. Erythropoietin-stimulating agents are preferred to stimulate endogenous RBC production.

C. Weekly monitoring of complete blood count (CBC): Monitoring of CBC is important to assess the response to treatment and adjust therapy as needed but does not represent a specific treatment for anemia in chronic renal disease.

D. An order for iron replacement medication: Iron replacement may be indicated if iron deficiency is contributing to the anemia, but it is not the primary treatment for anemia in chronic renal disease. Erythropoietin-stimulating agents are typically used first to address the underlying cause of anemia.

A. "I get chest pain from time to time, but it usually resolves with rest.": While chest pain (angina) can occur with aortic stenosis, it is not as specific as the symptom described in option D. Angina could be related to various other cardiac conditions, including coronary artery disease.

B. "Sometimes when I'm resting, I can feel my heart skip a beat.": Palpitations or feeling like the heart skips a beat are common in many cardiac arrhythmias but are not specifically indicative of aortic stenosis.

C. "My feet and ankles have gotten very puffy the last few weeks.": Edema (puffy feet and ankles) is more commonly associated with right-sided heart failure or other conditions like chronic venous insufficiency, not specifically aortic stenosis.

D. "Whenever I do any form of exercise, I get very short of breath.": Dyspnea on exertion is a classic symptom of aortic stenosis. It occurs because the narrowed aortic valve obstructs blood flow from the left ventricle to the aorta, reducing cardiac output and causing exertional symptoms.