Sickle Cell Disease questions with correct answers

Sickle Cell Disease - Answer Is a group of inherited red blood cell disorders. People with SCD have abnormal hemoglobin, called hemoglobin S or sickle hemoglobin, in their red blood cells. Risk Factors for Sickle Cell Disease Include - Answer 1-Genetics: Having parents heterozygous for hemoglobin S 2-Ethnicity: Been of African American descent Other races that can be affected are people from Mediterranean , Caribbean, Arabian, and east Indian descent. Hemoglobin S is Sensitive to - Answer Changes in oxygen content in red blood cell. Insufficient oxygen causes the cell to assume a sickle shape and the cell becomes rigid and clumped together, obstructing capillary flow. Sickling Episodes Can be Precipitated by - Answer Sickling episodes are most commonly triggered by low oxygen tension in the blood. Hypoxia or deoxygenation can be caused by: -Viral or bacterial infections (Most common precipitating factors). -High altitude -Emotional or physical stress (Increases metabolic rate) -Surgery