Which statement by a patient with sickle cell anemia indicates good understanding of the nurse's teaching about prevention of sickle cell crisis?

Question

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Since infection is the most common cause of a sickle cell crisis, influenza, Haemophilus influenzae, pneumococcal pneumonia, and hepatitis immunizations should be administered. Although continuous dose opioids and oxygen may be administered during a crisis, patients do not receive these therapies to prevent crisis. Hydroxyurea (Hydrea) is used for many patients to decrease the number of sickle cell crises.

Which Statement by a Patient with Sickle Cell Anemia Indicates