What are the dental nurse's responsibilities in applying fluoride varnish or sealants in a pediatric patient and ensuring parental consent?

• A. Explain procedure and length of time; obtain parental consent; check medical history; apply varnish or sealant according to protocol; record treatment; monitor for adverse reactions; provide aftercare advice.
• B. Apply varnish without consent to save time.
• C. Ignore medical history.
• D. Only sealants, not varnish.

Answer: (C)