A Laboratory Technologist Sets Up a Sickle Screen for a Patient

A laboratory technologist sets up a sickle screen for a patient according to procedure. When the technologist goes to read the results, he notices that he cannot see the black lines on the reading card through the patient's solution. QC was performed with the patient's sample and the technologist could see the black lines on the negative control but could not see them on the positive control. What should the technician do now?

A) Report the result as positive for hemoglobin S.
B) Report the result as negative for hemoglobin S.
C) Report the result as negative.
D) Report the result as positive.
E) Repeat the test.