Final answer:
The most common cause of death in adult sickle cell anemia patients is related to complications such as organ damage and strokes, caused by the abnormal shape of red blood cells and the reduced delivery of oxygen.
Step-by-step explanation:
The most common cause of death in adult sickle cell anemia patients is often related to complications from the disorder itself. Sickle cell anemia causes red blood cells to become misshapen, assuming a sickle or crescent shape, which impairs their ability to carry oxygen efficiently. The reduced oxygen delivery and abnormal shape lead to blockages in capillaries, causing severe complications such as organ damage, strokes, and infections. Adults may particularly suffer from organ damage over time, with the kidneys, lungs, and brain being vulnerable. Acute chest syndrome, a lung-related complication, and stroke are among the leading causes of mortality in adults with sickle cell anemia.