What statement best describes Hirschsprung disease?
- A. The colon has an aganglionic segment.
- B. It results in frequent evacuation of solids, liquid, and gas.
- C. The neonate passes excessive amounts of meconium.
- D. It results in excessive peristaltic movements within the gastrointestinal tract.
Correct Answer: A
Rationale: Hirschsprung disease is characterized by the absence of ganglion cells in a segment of the colon, leading to a lack of peristalsis and obstruction. The other options do not accurately describe this condition.
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What is the most appropriate nursing action when intermittently gavage feeding a preterm infant?
- A. Allow formula to flow by gravity
- B. Avoid allowing the infant to suck on the tube
- C. Insert the tube through the nares instead of the mouth
- D. Apply gentle pressure to the syringe to deliver the formula
Correct Answer: A
Rationale: The correct action when intermittently gavage feeding a preterm infant is to allow the formula to flow by gravity. This method helps prevent overfeeding and aspiration, which can occur if the formula is delivered too quickly under pressure. Choice B is incorrect as sucking on the tube can cause complications. Choice C is incorrect as the tube is typically inserted through the mouth. Choice D is incorrect as steady pressure can lead to rapid delivery of the formula, increasing the risk of complications.
A girl, age 5 1/2 years, has been sent to the school nurse for urinary incontinence three times in the past 2 days. The nurse should recommend to her parent that the first action is to have the child evaluated for what condition?
- A. School phobia
- B. Glomerulonephritis
- C. Urinary tract infection (UTI)
- D. Attention deficit hyperactivity disorder (ADHD)
Correct Answer: C
Rationale: Urinary tract infections are a common cause of sudden onset urinary incontinence in children. While school phobia and ADHD can cause behavioral changes, a medical condition like a UTI should be ruled out first.
Identification and treatment of cryptorchid testes should be done by age 2 years. What is an important consideration?
- A. Medical therapy is not effective after this age.
- B. Treatment is necessary to maintain the ability to be fertile when older.
- C. The younger child can tolerate the extensive surgery needed.
- D. Sexual reassignment may be necessary if treatment is not successful.
Correct Answer: B
Rationale: Early treatment of cryptorchidism is essential to preserve fertility and prevent complications such as testicular cancer. Surgery is usually well-tolerated, and sexual reassignment is not typically related to this condition.
What condition is the most common cause of acute renal failure in children?
- A. Pyelonephritis
- B. Tubular destruction
- C. Severe dehydration
- D. Upper tract obstruction
Correct Answer: C
Rationale: Severe dehydration is the most common cause of acute renal failure in children, as it leads to prerenal azotemia, which can progress to renal failure if not corrected. Other causes like pyelonephritis and tubular destruction are less common and usually secondary to other conditions.
What does the Hib conjugate vaccine protect against?
- A. Bacterial meningitis
- B. Epiglottitis
- C. Bacterial pneumonia
- D. All Correct
Correct Answer: D
Rationale: The Hib conjugate vaccine is crucial for protecting children from several severe infections caused by Haemophilus influenzae type b, including bacterial meningitis, epiglottitis, bacterial pneumonia, septic arthritis, and sepsis. Therefore, all the provided options are correct. Bacterial meningitis, epiglottitis, and bacterial pneumonia are serious conditions that the Hib vaccine effectively prevents, making choice D the correct answer. Choices A, B, and C are incorrect when considered individually as the Hib vaccine does not protect against only one specific infection; rather, it provides immunity against multiple diseases caused by Haemophilus influenzae type b.