certified (AmE), experienced, licensed (AmE), qualified, registered, trained
staff
the children's staff nurse

ward (esp. BrE)
charge
head, senior (BrE)
auxiliary (BrE), practical (AmE)
junior (BrE), novice (AmE)
student, trainee (BrE)
female, male
day, night
community, district (both BrE)
hospital, practice, school
This is a job for the school nurse.

emergency
emergency-room (abbreviated to ER)
private
specialist
maternity, paediatric/pediatric, psychiatric, scrub (= who helps a surgeon prepare for surgery), triage, veterinary (BrE)
retired
practising/practicing
baby (AmE), nursery (BrE)
wet (= who breastfeeds another woman's baby)

practitioner
educator (esp. AmE), manager, specialist
education

Nurse is used with these nouns as the subject:
baby

Nurse is used with these nouns as the object:
baby, cold, grievance, grudge, infant, injury, sick, wound