Which lab value is a reliable indicator of bone marrow suppression in a patient receiving chemotherapy?
Total protein level
Serum potassium level
Erythrocyte sedimentation rate (ESR)
Platelet count
The Correct Answer is D
A. Total protein level. Total protein level does not directly indicate bone marrow suppression.
B. Serum potassium level. Serum potassium level reflects electrolyte balance but is not specific for bone marrow suppression.
C. Erythrocyte sedimentation rate (ESR). ESR can indicate inflammation but is not a reliable indicator of bone marrow suppression.
D. Platelet count. Platelet count is a reliable indicator of bone marrow suppression because chemotherapy can significantly reduce platelet production, leading to thrombocytopenia.
Nursing Test Bank
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Related Questions
Correct Answer is B
Explanation
A. Reticulocyte count: Reticulocyte count measures immature red blood cells and is not the primary measure for the effectiveness of filgrastim, which is used to boost white blood cells.
B. White blood count / Absolute neutrophil count: Filgrastim (Neupogen) is used to increase white blood cells, specifically neutrophils. Therefore, monitoring the white blood count (WBC) and absolute neutrophil count (ANC) is the appropriate way to determine the effectiveness of the drug.
C. Total lymphocyte count: While lymphocytes are a type of white blood cell, filgrastim primarily affects neutrophils, making WBC/ANC a better indicator.
D. Platelet count: Filgrastim does not directly impact platelet production, so platelet count is not the primary measure of its effectiveness.
Correct Answer is A
Explanation
A. Schilling test. The symptoms described are suggestive of pernicious anemia, which is typically diagnosed through a Schilling test to assess vitamin B12 absorption.
B. Erythrocyte Indices. Erythrocyte indices are used to evaluate various aspects of red blood cell characteristics and are not specific to diagnosing pernicious anemia.
C. Bone Marrow Biopsy. While bone marrow biopsy may be used to diagnose certain types of anemia, it is not the primary diagnostic test for pernicious anemia.
D. Radiologic Studies. Radiologic studies are not typically used in the diagnosis of pernicious anemia.
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