Final answer:
Hereditary spherocytosis commonly shows elevated hemoglobin levels, not to be confused with sickle cell anemia, which is characterized by abnormally shaped hemoglobin causing crescent-shaped cells.
Step-by-step explanation:
Hereditary spherocytosis typically presents with an elevated level of hemoglobin, which may be related to the higher mean corpuscular hemoglobin concentration (MCHC) in spherocytes due to their reduced size and the same amount of hemoglobin. It is important to note that while sickle cell anemia and hereditary spherocytosis are both genetic disorders that affect erythrocytes, they are distinct conditions. Sickle cell anemia is characterized by the production of an abnormal type of hemoglobin, called hemoglobin S, leading to red blood cells that assume a sickle or crescent shape, particularly under low oxygen concentrations. In contrast, hereditary spherocytosis is characterized by a defect in the red blood cell's membrane, causing them to take on a spherical shape and be more prone to rupture.