Unit Notes - 2
5. Factors that can cause false negative solubility
            test results:
Hemoglobin levels of <7 g/dL
6. Other hemoglobins that can cause false positive
            solubility test results:
Hemoglobin Bart’s
7. Test that should be used to confirm positive
            solubility test results:
Hemoglobin electrophoresis
8. Other hemoglobins that can cause false positive
            Hemocard results:
Variant hemoglobins that have glutamic acid at 6th amino acid but substitution elsewhere