HESI Pediatrics Quizlet

Correct Answer: C

Rationale: The correct clinical manifestation the healthcare provider is likely to observe in a child with suspected intussusception is abdominal distension. Intussusception involves one portion of the intestine telescoping into another, causing obstruction. Abdominal distension is a common symptom due to the obstruction and buildup of gas and fluid in the affected area. While projectile vomiting can occur, it is not as specific to intussusception as abdominal distension. Currant jelly stools, which are stools containing blood and mucus, are a classic sign of intussusception but are not a clinical manifestation observable on assessment. Constipation is not typically associated with intussusception, as this condition often presents with symptoms of bowel obstruction rather than constipation.

Correct Answer: B

Rationale: Systolic blood pressure is the least reliable parameter when assessing the perfusion status of a 2-year-old child with possible shock. In pediatric patients, especially young children, blood pressure may not decrease until significant shock has already occurred, making it a late indicator of inadequate perfusion. Depending solely on systolic blood pressure to evaluate perfusion status in this age group can lead to a delay in appropriate interventions. Distal capillary refill time, skin color, and temperature changes, and the presence of peripheral pulses are more sensitive and early indicators of perfusion status in pediatric patients. Monitoring distal capillary refill provides information on peripheral perfusion, while changes in skin color and temperature can signal circulatory compromise. Evaluating the presence or absence of peripheral pulses offers insights into vascular perfusion. These parameters offer more reliable and prompt feedback on a child's perfusion status compared to systolic blood pressure.

Correct Answer: C

Rationale: The correct answer is C. Moving a child to a regular bed by the age of three can increase the risk of falls as young toddlers may not have the motor skills to safely navigate a larger bed. This indicates a need for more teaching on safety measures. Choices A, B, and D are all appropriate safety measures that can help prevent accidents and injuries in young children. Keeping medications in a medicine cabinet, having secured gates at entrances to staircases, and choosing shoes that fasten with Velcro instead of laces are all good practices to ensure a safe environment for toddlers.

Correct Answer: B

Rationale: High fever is a key clinical manifestation of bacterial meningitis due to the inflammatory response in the meninges. Photophobia, choice A, is also commonly observed due to meningeal irritation, but it is not as specific as high fever. Rash, choice C, is more indicative of conditions like meningococcal meningitis rather than bacterial meningitis. Nasal congestion, choice D, is not typically associated with bacterial meningitis. Therefore, the correct answer is B.

Correct Answer: B

Rationale: The correct answer is B. Myelination occurs in a cephalocaudal (head-to-toe) pattern, improving nerve function progressively. Choice A is incorrect as myelination continues into adolescence and beyond, not just during childhood. Choice C is incorrect because myelination actually increases the speed of nerve impulses rather than decreasing it. Choice D is incorrect as myelination enhances the specificity of nerve impulses, making them more efficient and precise rather than less specific.