Final answer:
The Mean Corpuscular Hemoglobin Concentration (MCHC) is calculated by dividing the hemoglobin concentration by the red blood cell concentration and multiplying by 10.
Step-by-step explanation:
The erythrocyte index that is calculated by dividing the hemoglobin concentration by the red blood cell concentration and multiplying by 10 is the Mean Corpuscular Hemoglobin Concentration (MCHC). MCHC reflects the average amount of hemoglobin present in the red blood cells. It is commonly used to diagnose and monitor certain types of anemia. To calculate MCHC, divide the hemoglobin concentration (in g/dL) by the red blood cell concentration (in millions/µL) and multiply by 10.