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How is the diagnosis of Hirschsprung disease confirmed in a 1-month-old infant admitted to the pediatric unit?
- A. Colonoscopy
- B. Rectal biopsy
- C. Multiple saline enemas
- D. Fiberoptic nasoenteric tube
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.
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A group of students is reviewing information about the endocrine system in infants and children. The students demonstrate understanding of the information when they state:
- A. Endocrine glands begin developing during gestation.
- B. Endocrine glands are fully functional at birth.
- C. Infants may have difficulty regulating glucose and electrolytes.
- D. A child's endocrine system plays a significant role in growth and development.
Correct Answer: C
Rationale: The correct answer is C. Infants may have difficulty regulating glucose and electrolytes due to their immature endocrine systems. This can lead to issues such as hypoglycemia and electrolyte imbalances. Choice A is incorrect because endocrine glands actually begin developing early in gestation, not just in the third trimester. Choice B is incorrect as endocrine glands are not fully functional at birth; they continue to mature and develop after birth. Choice D is incorrect as a child's endocrine system has a significant impact on growth and development through the secretion of hormones that regulate various processes in the body, but it does not specifically address the difficulty in regulating glucose and electrolytes seen in infants.
A nurse is teaching the parents of a toddler about the signs and symptoms of lead poisoning. Which symptom should the nurse emphasize?
- A. Abdominal pain
- B. Constipation
- C. Irritability
- D. Frequent urination
Correct Answer: C
Rationale: Irritability is a significant symptom of lead poisoning in toddlers. Lead exposure can lead to behavioral changes, including irritability, which is crucial for parents to recognize. While abdominal pain and constipation can occur in lead poisoning, they are not as specific or prominent as irritability. Frequent urination is not typically associated with lead poisoning in toddlers, making it a less relevant symptom to emphasize. By highlighting irritability, parents can be better equipped to identify potential signs of lead poisoning in their toddler.
A child is being assessed for suspected intussusception. What clinical manifestation is the healthcare provider likely to observe?
- A. Projectile vomiting
- B. Currant jelly stools
- C. Abdominal distension
- D. Constipation
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.
When teaching a group of parents in the daycare center about accident prevention, the nurse explains that young toddlers are prone to injuries from falls. When receiving feedback, the nurse identifies that more teaching is needed when one parent states, 'I will:'
- A. keep medications in a medicine cabinet.
- B. have secured gates at entrances to staircases.
- C. move our child to a regular bed by the appropriate age.
- D. buy shoes that close with Velcro rather than laces.
Correct Answer: C
Rationale: Moving a child to a regular bed by the appropriate age is not recommended as it can increase the risk of falls. Toddlers should transition to a regular bed only when developmentally ready to prevent accidents. Keeping medications in a medicine cabinet (Choice A) promotes safety by preventing accidental ingestion. Securing gates at entrances to staircases (Choice B) helps prevent falls down stairs. Buying shoes that close with Velcro rather than laces (Choice D) is a good practice to prevent tripping and falling.
The school nurse is presenting a class to a group of students about common overuse disorders. Which disorder would the school nurse include?
- A. Dislocated radial head
- B. Transient synovitis of the hip
- C. Osgood-Schlatter disease
- D. Scoliosis
Correct Answer: C
Rationale: The correct answer is C: Osgood-Schlatter disease. This condition is a common overuse injury that affects the knee. Osgood-Schlatter disease typically occurs in children and adolescents who are involved in activities that require frequent running, jumping, and kicking. It is characterized by pain, swelling, and tenderness at the tibial tuberosity, where the patellar tendon inserts into the tibia.
Choice A, Dislocated radial head, is not an overuse disorder but rather a form of elbow injury where the head of the radius bone is displaced from its normal position.
Choice B, Transient synovitis of the hip, is a self-limiting condition that causes hip pain and limping in children. It is not typically considered an overuse disorder.
Choice D, Scoliosis, is a condition characterized by an abnormal lateral curvature of the spine. While it may be related to certain activities or postures, it is not primarily classified as an overuse disorder.