Nokea
What is the most common cause of bronchiolitis in infants?
- A. Adenovirus
- B. Influenza virus
- C. Respiratory syncytial virus
- D. Parainfluenza virus
Correct Answer: C
Rationale: The correct answer is C, Respiratory syncytial virus (RSV). RSV is the leading cause of bronchiolitis, a common respiratory condition in infants that results in inflammation of the small airways in the lung. It is highly contagious and can cause severe respiratory distress in young children, particularly those under 2 years old. Choice A, Adenovirus, is not the most common cause of bronchiolitis in infants. Choice B, Influenza virus, may cause respiratory infections but is not the primary cause of bronchiolitis. Choice D, Parainfluenza virus, can cause croup and other upper respiratory infections but is not the main cause of bronchiolitis in infants.
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What is the primary symptom of congenital diaphragmatic hernia in a newborn?
- A. Cyanosis
- B. Bradycardia
- C. Absent breath sounds
- D. Tachypnea
Correct Answer: C
Rationale: Absent breath sounds on the affected side are a primary symptom of congenital diaphragmatic hernia. Cyanosis, bradycardia, and tachypnea may also be present but are not the primary symptom. Cyanosis is a bluish discoloration of the skin due to poor oxygenation, bradycardia is a slower than normal heart rate, and tachypnea is rapid breathing.
A parent of an infant with gastroesophageal reflux asks how to decrease the number and total volume of emesis. What recommendation should the nurse include in teaching this parent?
- A. Surgical therapy is indicated.
- B. Place the infant in a prone position for sleep after feeding.
- C. Thicken feedings and enlarge the nipple hole.
- D. Reduce the frequency of feeding by encouraging larger volumes of formula.
Correct Answer: C
Rationale: The correct recommendation for decreasing the number and total volume of emesis in an infant with gastroesophageal reflux is to thicken feedings and enlarge the nipple hole. Thicker feedings can reduce the frequency and volume of emesis by making the food less likely to be regurgitated. Enlarging the nipple hole helps ensure the thickened feedings can pass through. Surgical therapy (Choice A) is not the initial recommendation for managing gastroesophageal reflux in infants. Placing the infant in a prone position for sleep after feeding (Choice B) is not recommended due to the increased risk of sudden infant death syndrome (SIDS). Reducing the frequency of feeding by encouraging larger volumes of formula (Choice D) can exacerbate the reflux symptoms.
Which condition is characterized by a "barking" cough in children?
- A. Asthma
- B. Bronchiolitis
- C. Croup
- D. Pneumonia
Correct Answer: C
Rationale: Croup is the correct answer. It is characterized by a distinctive "barking" cough, typically worse at night, caused by the inflammation of the upper airway, specifically the larynx and trachea. Asthma (Choice A) typically presents with wheezing and shortness of breath rather than a barking cough. Bronchiolitis (Choice B) commonly causes wheezing and respiratory distress in infants and young children. Pneumonia (Choice D) often presents with symptoms like fever, productive cough, and chest pain, but not typically a barking cough.
An infant with short bowel syndrome is receiving total parenteral nutrition (TPN). The practitioner has added continuous enteral feedings through a gastrostomy tube. The nurse recognizes this as important for which reason?
- A. Wean the infant from TPN gradually
- B. Stimulate adaptation of the small intestine
- C. Provide additional nutrients that cannot be included in the TPN
- D. Offer parents encouragement that the child is close to discharge
Correct Answer: B
Rationale: Continuous enteral feedings help stimulate the small intestine's adaptation in short bowel syndrome, promoting better nutrient absorption and eventually reducing reliance on TPN. This approach is crucial for long-term management and improving the child's prognosis. Choice A is incorrect because weaning off TPN typically occurs gradually over time, not the next day. Choice C is incorrect because TPN can be adjusted to provide necessary nutrients, and enteral feedings are mainly used to stimulate intestinal function. Choice D is incorrect as the addition of enteral feedings does not necessarily indicate imminent discharge; it primarily focuses on enhancing intestinal adaptation and reducing reliance on TPN.
When should the nurse instruct parents to administer a daily proton pump inhibitor to their child with gastroesophageal reflux?
- A. At bedtime
- B. With a meal
- C. Midmorning
- D. 30 minutes before breakfast
Correct Answer: D
Rationale: Proton pump inhibitors (PPIs) like omeprazole or lansoprazole are most effective when given 30 minutes before breakfast. This timing allows the medication to inhibit the proton pumps in the stomach that produce acid, providing better symptom control throughout the day. Administering the PPI at bedtime (choice A) may not be as effective as giving it before breakfast due to the timing of peak acid production during the day. Giving it with a meal (choice B) might affect the absorption and effectiveness of the medication. Midmorning administration (choice C) is not the recommended time for optimal PPI efficacy.