| A | B |
|---|
| Oxyhemoglobin | Iron attached to the Hgb molecule is in the ferrous state with Oxygen attached |
| Deoxyhemoglobin | Iron attached to the hemoglobin molecule is in the ferrous state but is not carrying oxygen |
| Carboxyhemoglobin | Hemoglobin molecule that carries carbon monoxide |
| Sulfhemoglobin | Hemoglobin that has irreversibly reacted with sulfur compounds. This pigment is not mesured by conventioanl Hgb techniques. |
| Porphyrias | The resultant disorders if one of the normal enzymatic steps in heme synthesis is blocked or deficient. |
| 2,3-DPG (also known as BPG): | Controls hemoglobin affinity for oxygen |
| Cyanmethemoglobin | The recommended method for hemoglobin measurement |
| Methemoglobin | Iron attached to the Hgb molecule is in the ferric state |
| Haptoglobin | Carries free Hgb |
| Hemoglobin SC | A combined inheritance of 1 mutatant Hgb S gene and 1 mutant Hgb C gene. Hgb value is slightly decreased. |
| Hemoglobin S | An autosomal mutation that causes valine to be substitued for glutamic acid a the sixth amion acid poisition of the beta globin chain |
| Hemoglobin C | An autosomal mutation that causes lysine to be substituted for glutamic acid at the sixth amino acid position of the beta globin chain |
| Beta thalassemia (That major or minor) | Mutant genes cause decreased synthesis of beta chains in adult hemoglobin |
| Alpha thalasemia | A defect in one to four genes that control alpha chain production in adult hemoglobins |
| Sickle Cell Disease | Homozygous inheritance of Hgb S. Severe anemia when patient is in crisis |
| Sickle Cell Trait | Heterozygous inheritance of Hgb S and Hgb A. Patients usually have a normal Hgb level. |
