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A 5-year-old girl was brought to the emergency department with bloody diarrhea and severe abdominal pain. A complete blood count produced these results:

CBC ParameterPatient ResultReference Interval
WBC9.6 x 109/L4.3 - 10.8 x 109/L
Hemoglobin9.1 g/dL11.5 - 13.5 g/dL
HCT28%37 - 48%
MCV80 fL86 - 98 fL
RDW13.111 - 15
Platelets90.1 x 109/L150 - 450 x 109/L
The peripheral blood smear is represented in the image to the right. Which of the following conditions could be present in this patient when considering the information above and the cells indicated by the arrows on the peripheral smear?

Please select the single best answer