ATI LPN
Pediatric Immunization NCLEX Questions Questions
Question 1 of 5
Which childhood vaccine should everyone receive a booster for in adulthood?
Correct Answer: C
Rationale: Pertussis (whooping cough) requires a booster in adulthood via the Tdap vaccine, recommended at age 11-12, then every 10 years (or during pregnancy), due to waning immunity from the childhood DTaP series. Mumps and varicella (via MMR and varicella vaccines) typically confer lifelong immunity with two doses in childhood, and polio does not require routine adult boosters in the US since it’s eradicated there, though travelers may need one. Pertussis is the standard adult booster.
Question 2 of 5
An example of a live vaccine is:
Correct Answer: A
Rationale: The varicella vaccine is a live attenuated vaccine containing a weakened varicella-zoster virus to prevent chickenpox. Choice B (influenza) includes both live (LAIV) and inactivated (IIV) forms, but the question implies a specific example, and IIV is more common. Choice C (Hepatitis B) is a recombinant subunit vaccine, and Choice D (Diphtheria) is a toxoid vaccine, both inactivated. Varicella is a clear, widely recognized live vaccine example.
Question 3 of 5
Absolute contraindications for pediatric immunizations would include which of the following?
Correct Answer: C
Rationale: Anaphylaxis to a prior vaccine dose is an absolute contraindication, as it indicates a severe hypersensitivity that could recur, risking death. Choice A (local reaction) and D (mild illness) are not contraindications; vaccination can proceed unless fever is moderate/severe. Choice B (febrile seizure) is a precaution for certain vaccines (e.g., MMR), not an absolute bar.
Question 4 of 5
A provider has ordered Gardasil to be given to a prepubertal 9-year-old female. This vaccine should not be postponed until the child is in high school for which reason
Correct Answer: B
Rationale: Gardasil (HPV vaccine) is most effective before sexual activity begins (Choice B), as it prevents HPV infection, which is sexually transmitted. Vaccination at 9-12 years (per CDC) targets this pre-exposure window. Choice A is false—efficacy doesn’t decrease with age if unexposed. Choices C and D lack evidence linking efficacy to puberty or menses.
Question 5 of 5
What type of reaction commonly occurs after the diphtheria, tetanus, and acellular pertussis (DTaP) vaccine?
Correct Answer: A
Rationale: Swelling and tenderness at the injection site are common, expected side effects of DTaP, occurring in about 20-40% of recipients due to local inflammation from the vaccine antigens and adjuvants, per CDC data. Fever (Choice B) occurs but is less common (<10%) and rarely reaches 103°F. Continual crying (Choice C) and limpness (Choice D) are rare, severe reactions, not typical.