Pediatric HESI 2024

Correct Answer: D

Rationale: The classification system of congenital heart defects into acyanotic or cyanotic defects is problematic because children with acyanotic heart defects may develop cyanosis, complicating the differentiation. Cyanosis can occur in some acyanotic defects due to various reasons such as right-to-left shunting or decreased pulmonary blood flow, making the classification based solely on cyanosis misleading. Choice A is incorrect because while the classification may involve hemodynamics, the main issue lies in the potential for acyanotic defects to develop cyanosis. Choice B is incorrect as the ease of identifying children with cyanotic defects does not address the main problem with the classification system. Choice C is also incorrect as the presence of cyanosis is not the only factor determining the classification's validity.

Correct Answer: D

Rationale: Pegs and pounding boards are recommended as play materials for toddlers to express their anger in a constructive manner. These tools provide a safe and effective outlet for the child's emotions through physical activity. Options A, B, and C do not offer the same interactive and expressive qualities that pegs and pounding boards provide. A ball and bat may encourage aggressive behavior, a wad of clay is more suitable for creative expression rather than anger management, and a punching bag may promote violent behavior which is not appropriate for toddlers.

Correct Answer: A

Rationale: In this scenario, focusing on teaching the mother proper care procedures is crucial. This empowers the mother to provide appropriate care for her daughter's broken arm, promoting optimal healing. Dealing with insurance coverage (Choice B) is important but not the immediate focus for the mother. Determining the success of treatment (Choice C) is typically done by healthcare professionals, not family members. Transmitting information to family members (Choice D) may be beneficial but ensuring the primary caregiver, in this case, the mother, is well-informed and capable of providing care takes precedence.

Correct Answer: B

Rationale: The correct answer is B: Steroids. Children receiving steroids should not receive the varicella vaccine as it can increase the risk of severe infection due to the immunosuppressive effects of steroids. Insulin (Choice A) is not a medication that contraindicates varicella vaccination. Antibiotics (Choice C) and anticonvulsants (Choice D) are also not medications that would impact the decision to immunize against varicella.

Correct Answer: A

Rationale: The correct answer is A: 'Mental retardation occurs if PKU is untreated.' Phenylketonuria (PKU) is a metabolic disorder that, if left untreated with dietary management, can lead to severe mental retardation due to the accumulation of phenylalanine. It is crucial for parents to understand the potential consequences of untreated PKU to emphasize the importance of early and consistent treatment. Choice B is incorrect because testing for PKU is typically done through newborn screening shortly after birth, not immediately. Choice C is incorrect as treatment for PKU primarily involves strict dietary management that restricts phenylalanine intake, not lifelong medications. Choice D is incorrect as PKU is inherited in an autosomal recessive pattern, meaning that both parents must pass on a mutated gene for the disorder to manifest.