HESI Pediatrics Quizlet

Correct Answer: A

Rationale: Infection is the leading cause of shock in infants and children due to their heightened vulnerability to sepsis. Infants and children possess developing immune systems, rendering them more susceptible to infections that can progress to septic shock. While cardiac failure is a severe condition, it is not as commonly the primary cause of shock in this age group. Accidental poisoning, though a potential shock inducer, is less prevalent in infants and children compared to infections. Severe allergic reactions, though significant, are not as frequent as infections in precipitating shock in infants and children.

Correct Answer: B

Rationale: The correct answer is B: Diphtheria, pertussis, tetanus, and polio. By 11 months of age, infants should have received doses of these vaccines as part of the immunization schedule. Choice A is incorrect because measles is usually given later in the schedule. Choice C is incorrect as rubella is usually given as part of the MMR vaccine, not individually, and tuberculosis is not routinely given as a vaccine in early infancy. Choice D is incorrect because mumps is not part of the recommended vaccines at 11 months of age.

Correct Answer: B

Rationale: Rectal biopsy is the definitive diagnostic procedure for Hirschsprung disease in infants. This procedure reveals the absence of ganglion cells in the affected bowel segment, which is a hallmark of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for diagnosing Hirschsprung disease due to the risk of not accurately reaching the affected segment. Multiple saline enemas (Choice C) are not used to confirm the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a standard diagnostic procedure for Hirschsprung disease and does not provide the necessary information to confirm the absence of ganglion cells in the affected bowel segment.

Correct Answer: C

Rationale: The correct clinical manifestation that a nurse is likely to observe in a child with suspected intussusception is abdominal distension. Intussusception is a medical emergency where a part of the intestine folds into itself, causing obstruction. Abdominal distension is a common symptom due to the obstruction and the build-up of gases and fluids. While currant jelly stools (Choice B) are a classic sign of intussusception, they are typically seen in later stages of the condition and may not be present during the initial assessment. Projectile vomiting (Choice A) is more commonly associated with conditions like pyloric stenosis. Constipation (Choice D) is not a typical manifestation of intussusception; the condition usually presents with severe colicky abdominal pain and possible passage of blood and mucus in stools.

Correct Answer: D

Rationale: When counseling a couple about the possibility of having a child with a genetic abnormality, it is vital for the nurse to present information in a nondirective manner. This approach empowers the couple to make decisions based on their values and preferences, respecting their autonomy. Gathering information from three generations (Choice A) may not be necessary and might overwhelm the couple with unnecessary data. Informing the family about the need for a wide range of information (Choice B) is not as critical as supporting their decision-making process through a nondirective approach. While maintaining confidentiality (Choice C) is crucial, it is not the most important aspect compared to ensuring the couple can make informed choices that align with their beliefs and wishes.