The nurse is reviewing the blood work of a client newly diagnosed with iron-deficiency anemia. Because of the way iron is stored in the body, the nurse pays closest attention to which lab value?
1. Serum ferritin 10 mg/mL
2. Red blood cell count of 5,000,000
3. Hb 10.1 gm/dL
4. Platelet count of 75,000
Correct Answer: 1
Rationale 1: A serum ferritin value of less than 12 mg/mL indicates iron-deficiency anemia.
Rationale 2: A red blood cell count of 5 million is within normal limits.
Rationale 3: A hemoglobin of 10.1 gm/dL is too low, but it does not differentiate the type of anemia present.
Rationale 4: A platelet count of 75,000 is too low. It might or might not be accompanied by anemia.
Global Rationale: A serum ferritin value of less than 12 mg/mL indicates iron-deficiency anemia. A red blood cell count of 5 million is within normal limits. A hemoglobin of 10.1 gm/dL is too low, but it does not differentiate the type of anemia present. A platelet count of 75,000 is too low. It might or might not be accompanied by anemia.
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