Pediatric HESI Practice Questions

Correct Answer: D

Rationale: The priority nursing intervention for a child with leukemia admitted to the hospital with a fever is to monitor for signs of infection. Children with leukemia are immunocompromised, making them more susceptible to infections. Monitoring for signs of infection helps in early detection and timely intervention, which is crucial in preventing complications. Administering antibiotics (choice A) may be necessary if an infection is suspected or confirmed, but the priority is to assess for signs of infection first. Administering antipyretics (choice B) may help reduce fever, but it does not address the underlying cause, which could be an infection. Providing nutritional support (choice C) is important for overall health but is not the priority when a child with leukemia presents with a fever, as infection needs to be ruled out or managed first.

Correct Answer: C

Rationale: Circumoral cyanosis should alert the nurse to perform further assessment in a 2-month-old infant with Down syndrome. This finding may indicate cardiac or respiratory issues, such as inadequate oxygenation. Small, low-set ears and a protruding furrowed tongue are common physical characteristics associated with Down syndrome and may not necessarily warrant immediate further assessment. A flat occiput is a normal variation in infant anatomy and is not typically a cause for immediate concern in this context.

Correct Answer: B

Rationale: The correct answer is B: Despair. In separation anxiety, the stage of despair is characterized by regression and withdrawal after an initial period of protest. The child may become quiet and appear to accept the separation, but this is actually a sign of deeper distress. Choice A, Denial, is incorrect as it refers to refusing to believe or accept the reality of the separation. Choice C, Mistrust, is incorrect as it pertains to a lack of trust in others, not a stage of separation anxiety. Choice D, Rejection, is incorrect as it involves pushing others away and not related to the described behavior of the toddler in the scenario.

Correct Answer: C

Rationale: The correct answer is C. Infants receive passive immunity through antibodies from the mother during pregnancy and breastfeeding, which protect them initially. Choice A is incorrect because a 6-week-old infant born without an immune system would not be able to limit exposure to pathogens effectively. Choice B is incorrect as antibodies produced by colonic bacteria are not a significant source of immunity in infants. Choice D is incorrect as the fetal thymus primarily plays a role in T cell development rather than antibody production during gestation.

Correct Answer: D

Rationale: The varicella vaccine is specifically designed to prevent chickenpox. Measles, mumps, and rubella are prevented by different vaccines: Measles is prevented by the measles, mumps, and rubella (MMR) vaccine; Mumps is prevented by the MMR vaccine; and Rubella is also prevented by the MMR vaccine. Therefore, the correct answer is D, Chickenpox, as it is the disease prevented by the varicella vaccine.