The expected hemoglobin range for sickle cell anemia is:

The expected hemoglobin range for sickle cell anemia is:

• A. 6.5-9.5 g/dL
• B. 13.5-16.5 g/dL
• C. 8.5-12.5 g/dL
• D. 9.5-13.5 g/dL

Answer: (A)

Sickle cell disease causes chronic hemolytic anemia, so red blood cell destruction exceeds production and hemoglobin stays in the lower range. The typical hemoglobin level for someone with sickle cell anemia is about 6.5 to 9.5 g/dL, reflecting this ongoing anemia. Normal hemoglobin values are higher (roughly 11–15 g/dL in children and about 12–16 g/dL in adults), so ranges above that do not fit the expected pattern for untreated sickle cell disease. Ranges that approach or exceed normal levels would be unlikely without specific interventions affecting Hb, while very low values (below about 6 g/dL) indicate more severe anemia.

Sickle cell disease causes chronic hemolytic anemia, so red blood cell destruction exceeds production and hemoglobin stays in the lower range. The typical hemoglobin level for someone with sickle cell anemia is about 6.5 to 9.5 g/dL, reflecting this ongoing anemia.

Normal hemoglobin values are higher (roughly 11–15 g/dL in children and about 12–16 g/dL in adults), so ranges above that do not fit the expected pattern for untreated sickle cell disease. Ranges that approach or exceed normal levels would be unlikely without specific interventions affecting Hb, while very low values (below about 6 g/dL) indicate more severe anemia.