HESI Pediatrics Quizlet

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: B

Rationale: The most appropriate response for the nurse in this situation is to ask for more specific information related to the developmental delays. By seeking additional details, the nurse can better understand the situation, offer appropriate support, and provide guidance tailored to the child's specific needs. Praising the parent or encouraging the plan without understanding the full context may not be beneficial. Advising the parent to have the healthcare provider help choose a program assumes the parent has not already involved the healthcare provider, which may not be the case. Explaining that the developmental delays could disappear is not appropriate as it may give false hope or minimize the parent's concerns.

Correct Answer: C

Rationale: Positive fibrin split products are indicative of disseminated intravascular coagulation (DIC). In DIC, there is widespread clotting and subsequent consumption of clotting factors, leading to the formation of fibrin split products. A shortened prothrombin time (Choice A) is not typically seen in DIC as it indicates faster clotting, which is opposite to the pathophysiology of DIC. An increased fibrinogen level (Choice B) may be observed in the early stages of DIC due to the compensatory increase in production, but it is not a definitive indicator. Increased platelets (Choice D) may be seen in the early stages of DIC due to the body's attempt to compensate for clot formation, but it is not a specific finding for DIC.

Correct Answer: B

Rationale: Rectal biopsy is the definitive diagnostic procedure for Hirschsprung disease in infants. It confirms the absence of ganglion cells in the affected bowel segment, which is characteristic of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for confirmation as it may not provide a definitive result. Multiple saline enemas (Choice C) are utilized in the treatment of meconium ileus, a complication of cystic fibrosis, and not in the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a diagnostic tool for Hirschsprung disease; it is commonly used for gastrointestinal decompression or feeding purposes but does not confirm the diagnosis.

Correct Answer: B

Rationale: Peeling skin on the hands and feet is a characteristic clinical manifestation of Kawasaki disease, known as desquamation. This occurs during the convalescent phase of the illness, typically around 2-3 weeks after the onset of symptoms. While a generalized rash can be present in Kawasaki disease, peeling skin on the hands and feet is a more specific and distinctive feature. High fever is also a common symptom of Kawasaki disease, usually lasting for at least 5 days, while a low-grade fever is not typically associated with this condition. Therefore, the nurse is more likely to observe peeling skin on the hands and feet in a child suspected of having Kawasaki disease, making option B the correct choice.