Pediatric HESI 2023

Correct Answer: A

Rationale: Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division that leads to the presence of an extra chromosome 21. This additional chromosome alters the normal genetic makeup, resulting in the characteristics associated with Down syndrome. Therefore, the correct answer is nondisjunction (Choice A). Choices B, C, and D are incorrect because Trisomy 21 is not caused by X-linked recessive inheritance, genomic imprinting, or autosomal dominant inheritance. Understanding the specific genetic mechanism involved in Trisomy 21 is crucial for grasping the basis of this chromosomal disorder.

Correct Answer: C

Rationale: The correct dietary instruction for a child with GERD is to avoid high-fat foods. High-fat foods can relax the lower esophageal sphincter, leading to increased reflux. While avoiding gluten may be necessary for individuals with gluten sensitivity or celiac disease, it is not a standard recommendation for GERD. Avoiding spicy foods and dairy products may help some individuals with GERD, but the most crucial dietary advice is to avoid high-fat foods.

Correct Answer: B

Rationale: A macule is defined as a flat, discolored area on the skin that is different from surrounding tissue due to a change in color. In this case, the baby has a flat, discolored area on the skin, which fits the description of a macule. A papule is a small, raised solid bump, a vesicle is a small fluid-filled blister, and a scale is a flake of skin that is often dry and rough. Therefore, choices A, C, and D do not accurately describe the flat, discolored area on the baby's skin, making them incorrect.

Correct Answer: B

Rationale: Choice B is the correct answer because it accurately states that White, non-Hispanic children are more likely to be in very good or excellent health compared to African American and Hispanic children. This reflects a disparity in health outcomes among different racial groups. Choices A, C, and D are incorrect. Choice A is unrelated to the impact of common barriers to health care on families. Choice C talks about overweight children but does not address access to health care. Choice D discusses the impact of the overall health care plan on working families but does not specifically address the disparity in health status among different racial groups.

Correct Answer: B

Rationale: Assessing compliance with treatment regimens is crucial in managing eczema effectively and preventing flare-ups. This involves ensuring that the child is following the prescribed treatment plan, which may include medication application, skincare routines, and lifestyle modifications. Changing a bandage on a cut would not be a routine part of an eczema check-up unless there was a specific wound related to eczema. Discussing systemic corticosteroid therapy may be part of the management plan for severe eczema cases but would not be the primary focus during a routine check-up. Assessing the child's fluid volume, while important in general health assessments, is not directly related to managing eczema specifically.