Sample Page

The page below is a sample from the MediaLab course, Red Cell Disorders: Peripheral Blood Clues to Nonneoplastic Conditions.

Learn about Compliance & CE courses available for clinical laboratories and individual medical technologists.

Ungraded Practice Question

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 Parameter	Patient Result	Reference Interval
WBC	9.6 x 10⁹/L	4.3 - 10.8 x 10⁹/L
Hemoglobin	9.1 g/dL	11.5 - 13.5 g/dL
HCT	28%	37 - 48%
MCV	80 fL	86 - 98 fL
RDW	13.1	11 - 15
Platelets	90.1 x 10⁹/L	150 - 450 x 10⁹/L

The peripheral blood smear is represented in the image to the right. Which of the following condition(s) 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

	Hereditary spherocytosis
	Hemolytic uremic syndrome (HUS)
	Beta thalassemia

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