a registered nurse的用法和样例：
- Professor Chair is a registered nurse.
- What are the normal working hours for a registered nurse?
- Of any otherstudy or courses that have been undertaken whilst working as a Registered Nurse.
- Janet Whalley is a registered nurse who teaches new and expectant parents about childbirth, breastfeeding, and newborn care.
- Cherilyn Lee, a registered nurse, told CNN that Jackson suffered from severe insomnia and pleaded for the powerful sedative Diprivan, despite knowing its harmful effects.