A 3-year-old child with sickle cell disease is admitted to the hospital in sickle cell crisis with severe abdominal pain. Which type of crisis is the child most likely experiencing?
a. Aplastic
b. Hyperhemolytic
c. Vaso-occlusive
d. Splenic sequestration
ANS: C
Vaso-occlusive crisis, or painful crisis, is caused by obstruction of blood flow by sickle cells, infarctions, and some degrees of vasospasm.
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