Which of the following laboratory tests aids in the diagnosis of anemia?

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The red blood cell count measures the number of red blood cells in a sample of blood and is one of the primary laboratory tests used to diagnose anemia. Anemia is characterized by a low red blood cell count. A red blood cell count can help diagnose anemia by measuring the number and size of red blood cells in the patient's blood. Anemia is typically marked by a low red blood cell count. Total protein, C-reactive protein, and blood urea nitrogen are not directly related to the diagnosis of anemia.

Which of the Following Laboratory Tests Aids in the Diagnosis