The mother asks the nurse why her child must have three doses of a certain vaccine over the next few months. Which response by the nurse is correct?
1. "For some diseases, multiple doses are needed over time to allow the development of full immunity."
2. "The drug level must be high enough to prevent disease."
3. "It is prophylactic because not all parents get the immunizations at the correct time."
4. "We are not certain, but more doses have proven to be more effective."
Correct Answer: 1
Rationale 1: Multiple doses might be needed to establish immunity.
Rationale 2: The drug level is not what is essential; the level of immunity is.
Rationale 3: Immunizations are not considered prophylactic.
Rationale 4: This does not provide an appropriate answer to the mother.
Global Rationale: The total dose of a vaccine is important for the development of immunity. For some vaccinations, multiple doses are required to achieve immunity. Omitting subsequent doses could result in the lack of full disease protection. The nurse should provide correct information. Drug level is not associated with development of immunity and the dosing schedule is not prophylactic.
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