A nurse is evaluating the laboratory values of a client who is receiving epoetin alfa. Which of the following findings indicates a therapeutic response to the medication?
A.
Increased haemoglobin level
B.
Increased platelet count
C.
Increased neutrophil count
D.
Increased erythrocyte sedimentation rate
The Correct Answer and Explanation is :
The correct answer is A. Increased hemoglobin level.
Explanation:
Epoetin alfa is a synthetic form of erythropoietin, a hormone normally produced by the kidneys that stimulates the production of red blood cells (RBCs) in the bone marrow. This medication is primarily used to treat anemia, particularly in patients with chronic kidney disease, cancer, or those undergoing chemotherapy. The therapeutic goal of epoetin alfa is to increase the production of RBCs, thereby improving oxygen delivery to tissues and alleviating symptoms of anemia.
Increased Hemoglobin Level:
The primary therapeutic response to epoetin alfa is an increase in hemoglobin levels. Hemoglobin is the protein in red blood cells that carries oxygen throughout the body. When epoetin alfa is effective, it stimulates the bone marrow to produce more red blood cells, which results in an increase in hemoglobin concentration. Monitoring hemoglobin levels is a direct way to assess the effectiveness of epoetin alfa therapy. A target hemoglobin increase typically indicates that the medication is working as intended to alleviate anemia.
Other Laboratory Values:
- Increased Platelet Count (B): Epoetin alfa does not directly influence platelet production. A significant increase in platelet count could be unrelated to the medication and may be indicative of other conditions or therapies. Therefore, this finding is not a primary indicator of a therapeutic response to epoetin alfa.
- Increased Neutrophil Count (C): Similarly, epoetin alfa does not affect neutrophil production. An increased neutrophil count is more related to conditions like infections or inflammatory responses rather than to the effects of epoetin alfa.
- Increased Erythrocyte Sedimentation Rate (D): This is a non-specific marker of inflammation or other pathological conditions and is not a direct measure of the efficacy of epoetin alfa. An increased erythrocyte sedimentation rate does not specifically reflect the response to epoetin alfa therapy.
In summary, the increase in hemoglobin levels is the most relevant and direct indicator of a therapeutic response to epoetin alfa, as it reflects the medication’s effectiveness in treating anemia by boosting red blood cell production.