Case Study: Laboratory test results

Ungraded Practice Question

Why is it important to note that the red cell distribution width (RDW) in this case is normal ?

Please select the single best answer

The RDW adds nothing to the interpretation of these results.
The RDW helps to differentiate among various types of microcytic anemias.
A normal RDW rules out the possibility of a heterozygous inherited anemia such as thalassemia minor.
The RDW is usually normal for microcytic, hypochromic anemias.

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