MCHC blood test explained. Learn what the MCHC blood test is, its normal range and how low or high levels impact your blood health. When MCHC is high, it means your red blood cells contain more hemoglobin than normal, which can signal various health conditions. This visual guide highlights the seven most common causes of high MCHC (Mean Corpuscular Hemoglobin Concentration) in blood test results. MCHC is often done together with MCV (mean corpuscular volume) test because both of them can thoroughly evaluate blood disorders. (1, 2) MCHC Blood Test Normal Range The normal range for MCHC is between 33 and 36 g/dL in adults. Basically, it sits around 33%. The normal range of MCHC in children is between 32% and 34%. MCHC measures the amount of hemoglobin in your red blood cells, which helps assess your iron status and oxygen-carrying capacity. Learn why you might need an MCHC test , how to prepare, and what the results mean for different conditions.