<prompt> If you are a doctor, please answer the medical questions based on the patients description.I cant get hold of my PCP. Office is not returning my calls. Being 2 weeks. My blood test showed that my hematocrit is high 45.5 and my MCHC is low 31.9 I had to go to a health food store to get some answer and got some supplement since my Dr did not care. What is the relationship between Hematocrit and MCHC?Thank you and have a nice dayAAA  <response>: Hi ! To answer your query hematocrit is the measurement of the percentage of red blood cells in whole blood. It is an important determinant of anemia.MHC Mean Corpuscular Hemoglobin Concentration measures the average concentration of hemoglobin in red blood cells. It is most valuable in evaluating therapy for anemia. Low MCHC means that a unit of packed R.B.C.s contain less hemoglobin than normal and a high MCHC means that there is more hemoglobin in a unit of R.B.C.s. Decreased levels may indicate iron deficiency, blood loss, B6 deficiency, or thalassemia. Hope I have answered your question 