A client is in acute renal failure. During this period, the client's erythrocyte count might drop. The nurse understands that this might be due to a deficiency of which substance?
1. Renin
2. Angiotensin
3. Erythropoietin
4. Aldosterone
Correct Answer: 3
Rationale 1: Renin is not responsible for erythrocyte production.
Rationale 2: Angiotensin is the precursor for angiotensin II and is not involved in erythrocyte production.
Rationale 3: Erythrocyte homeostasis is controlled by erythropoietin, a hormone secreted by the kidney in response to low oxygen levels in the blood.
Rationale 4: Aldosterone is not responsible for erythrocyte production.
Global Rationale: Erythrocyte homeostasis is controlled by erythropoietin, a hormone secreted by the kidney in response to low oxygen levels in the blood. Renin is not responsible for erythrocyte production. Angiotensin is the precursor for angiotensin II and is not involved in erythrocyte production. Aldosterone is not responsible for erythrocyte production.
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