HemoTypeSC POC test. HemoTypeSC is a competitive immunoassay, such that the presence of a band indicates the absence of that particular hemoglobin. (A) Panel A demonstrates the interpretation of results. The HemoTypeSC test can qualitatively identify the presence or absence of HbA, HbS, and HbC. The subsequent panels are real-world examples from the study of results demonstrating the diagnosis of HbSS (B) and sickle cell trait (C). (D) Panel D shows the indeterminate result that indicates the presence of all 4 bands, which occurred in 4.2% of tests in this study.