HESI LPN
Pediatric HESI 2023 Questions
Question 1 of 5
Why is the infant scheduled to receive the intramuscular polio vaccine instead of the oral vaccine, as asked by the parents?
Correct Answer: A
Rationale: The American Academy of Pediatrics recommends the intramuscular polio vaccine over the oral vaccine due to its superior safety profile. Intramuscular administration ensures better immunogenicity and protection against poliovirus. Choice B is incorrect as the intramuscular vaccine is preferred for safety reasons. Choice C is incorrect because the recommendation is based on safety, not cost. Choice D is incorrect as the CDC recommendation is not solely based on immunocompromised status but rather on the overall safety and efficacy of the vaccine.
Question 2 of 5
The nurse is reviewing the laboratory test results of a child with Addison's disease. What would the nurse expect to find?
Correct Answer: B
Rationale: In Addison's disease, adrenal insufficiency leads to decreased aldosterone production. The decreased aldosterone results in impaired sodium reabsorption and potassium excretion, leading to hyperkalemia. Hypernatremia (Choice A) is unlikely because sodium reabsorption is impaired. Hyperglycemia (Choice C) is not a typical lab finding in Addison's disease. Hypercalcemia (Choice D) is not associated with Addison's disease; rather, it can be seen in conditions like hyperparathyroidism.
Question 3 of 5
When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:
Correct Answer: A
Rationale: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.
Question 4 of 5
A 12-month-old infant has become immunosuppressed during a course of chemotherapy. When preparing the parents for the infant's discharge, what information should the nurse give concerning the measles, mumps, and rubella (MMR) immunization?
Correct Answer: B
Rationale: Live vaccines, like the measles, mumps, and rubella (MMR) vaccine, should not be administered to immunosuppressed infants, such as those undergoing chemotherapy. The weakened immune system of these infants may not be able to handle live vaccines safely, potentially leading to severe complications. Therefore, it is crucial to avoid giving live vaccines like MMR to infants receiving chemotherapy. Choice A is incorrect as delaying the MMR vaccine until the infant reaches 2 years of age is not the main concern in this scenario. Choice C is incorrect because although MMR vaccination is important for disease prevention, it should not be given to immunosuppressed infants. Choice D is incorrect as immediate action is needed to prevent potential harm from live vaccines in immunosuppressed infants.
Question 5 of 5
What is one of the most important factors that a healthcare professional must consider when parents of a toddler request to be present at a procedure occurring on the hospital unit?
Correct Answer: B
Rationale: When parents of a toddler request to be present during a procedure, an individual assessment of the parents is crucial. This assessment helps healthcare professionals understand the parents' ability to cope with the situation, provide support to their child, and ensure a conducive environment for the procedure. Choice A is not as critical because the focus is on the parents' readiness rather than the specific procedure. Choice C, considering the toddler's desire, is important but not as crucial as assessing the parents. Choice D, anticipating the toddler's response to pain, is relevant but secondary to assessing the parents' readiness and support capabilities.