RT Book, Section A1 Benz, Edward J. A2 Longo, Dan L. SR Print(0) ID 1135226493 T1 Disorders of Hemoglobin T2 Harrison's Hematology and Oncology, 3e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9781259835834 LK accessbiomedicalscience.mhmedical.com/content.aspx?aid=1135226493 RD 2024/04/17 AB Hemoglobin is critical for normal oxygen delivery to tissues; it is also present in erythrocytes in such high concentrations that it can alter red cell shape, deformability, and viscosity. Hemoglobinopathies are disorders affecting the structure, function, or production of hemoglobin. These conditions are usually inherited and range in severity from asymptomatic laboratory abnormalities to death in utero. Different forms may present as hemolytic anemia, erythrocytosis, cyanosis, or vasoocclusive stigmata.