Item Value
Test name Hereditary Spherocytosis Evaluation
Available Stat? No
Turn around times 4-7 days
Performed by Mayo
Patient Preparation Recent transfusion, oral contaceptive use and H2 blocker use may interfere with test results.
Normal range 0.50 g/dL NaCl (unincubated)
Males 0.0-47.8% hemolysis
Females 0.0-31.1% hemolysis


0.60 g/dL NaCl (incubated)
Males 18.7-67.4% hemolysis
Females 10.9-65.5% hemolysis


0.65 g/dL NaCl (incubated)
Males 4.4-36.6% hemolysis
Females 0.2-39.3% hemolysis


0.75 g/dL NaCl (incubated)
Males 0.8-9.1% hemolysis
Females 0.0-10.9% hemolysis
Container type Lavender top
Amount to Collect 5 mL blood
Collection Instructions A control specimen is required from an unrelated, normal, non-smoking individual. Draw control at the same time as the patient sample. Clearly mark the control sample with 'CONTROL' and the sex of the individual providing the control sample on the label.

Refrigerate samples immediately after collection and transport cold to the lab.
Sample type EDTA Whole blood

If you have additional questions regarding this test, please call: 415-353-1667