Osmotic Fragility Test
An osmotic fragility test is performed to diagnose two hereditary conditions: thalassemia and hereditary spherocytosis.
Thalassemia causes your body to make an abnormal form of hemoglobin. Hemoglobin is the protein that allows red blood cells to carry oxygen.
If you have thalassemia, your red blood cells are more likely to be destroyed. This can lead to anemia.
Hereditary spherocytosis causes problems with the outer layer of your blood cells. This can also lead to anemia.
To perform this test, you will give a blood sample. Your red blood cells will be tested to see how easily they break. If your red blood cells are more fragile than normal, the test is considered positive.
|Related Tests||CBC; Reticulocyte Count; Blood Smear; Hemoglobin; Hematocrit; Iron Tests|