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The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
Correct Answer: A
Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.
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A mother brings her 3-month-old infant to the clinic because the baby does not sleep through the night. Which finding is most significant in planning care for this family?
- A. The mother is a single parent and lives with her parents
- B. The mother states the baby is irritable during feedings
- C. The infant's formula has been changed twice
- D. The diaper area shows severe skin breakdown
Correct Answer: D
Rationale: Severe skin breakdown in the diaper area is significant as it indicates a potential severe issue that needs immediate attention to prevent further complications. Skin breakdown can lead to infections and discomfort for the infant, making it a priority in planning care for this family. The other findings, such as the mother's living situation, baby's irritability during feedings, or formula changes, are important but do not pose immediate risks to the infant's health compared to severe skin breakdown.
The child is 3 years old and is 2 hours postop from a cardiac catheterization via the right femoral artery. Which assessment finding indicates arterial obstruction?
- A. Blood pressure is decreasing, and the pulse is rapid and irregular.
- B. The right foot feels cool to the touch and appears pale and blanched.
- C. The pulse distal to the femoral artery is weaker in the left foot than the right foot.
- D. The pressure dressing at the right femoral area is damp and oozing blood.
Correct Answer: B
Rationale: A cool, pale, and blanched foot is indicative of arterial obstruction, leading to poor blood flow. This finding requires immediate intervention to prevent further complications such as tissue damage or necrosis. Monitoring for signs of arterial compromise, such as color changes, temperature, and capillary refill, is crucial in detecting and managing vascular complications post-cardiac catheterization. Choices A, C, and D do not directly indicate arterial obstruction. While a decreasing blood pressure and rapid, irregular pulse may suggest compromise, these findings are more nonspecific. A weaker pulse distal to the femoral artery indicates reduced perfusion but not necessarily arterial obstruction. Finally, a damp, oozing pressure dressing suggests a dressing issue rather than arterial obstruction.
Prior to discharge, the parents of a child with cystic fibrosis are demonstrating chest physiotherapy (CPT) that they will perform for their child at home. Which action requires intervention by the nurse?
- A. Plan to perform CPT when the child awakens in the morning.
- B. A cupped hand is used when percussing the lung field.
- C. A bronchodilator is administered before starting CPT.
- D. The child is placed in a supine position to begin percussion.
Correct Answer: D
Rationale: The correct answer is D. Placing the child in a supine position to begin percussion is incorrect for chest physiotherapy (CPT). This position is not effective for CPT as it may lead to improper drainage of secretions. The child should be in an appropriate sitting or slightly reclined position to ensure proper lung drainage during CPT. Choices A, B, and C are all appropriate actions for chest physiotherapy. Performing CPT when the child awakens helps in clearing secretions, using a cupped hand during percussion is a proper technique to promote secretion movement, and administering a bronchodilator before CPT can help open up the airways for better clearance.
The parents of a 2-month-old infant, who is being discharged after treatment for pyloric stenosis, are being educated by the healthcare provider. Which statement by the parents indicates a need for further teaching?
- A. We should feed our baby in an upright position
- B. We should avoid feeding our baby solid foods until at least 6 months of age
- C. We will lay our baby on their stomach to sleep
- D. We will burp our baby frequently during feedings
Correct Answer: C
Rationale: The correct answer is C. Placing babies on their stomach to sleep increases the risk of sudden infant death syndrome (SIDS). The safest sleep position for infants is on their back to reduce the risk of SIDS. Teaching parents about safe sleep practices is crucial in preventing potential harm to the infant. Choices A, B, and D are all correct statements that promote the well-being of the infant. Feeding the baby in an upright position helps prevent reflux, delaying solid foods until 6 months of age is recommended for proper growth and development, and burping the baby frequently during feedings helps prevent gas buildup and colic.
A male infant with bronchiolitis is brought to the clinic by his mother. The infant is congested and febrile with a capillary refill of 2 seconds. Which information should the nurse discuss with the mother?
- A. Encourage the infant to play
- B. Limit the amount of oral intake
- C. Keep the infant isolated from others
- D. Place the infant on their back for naps
Correct Answer: C
Rationale: Bronchiolitis is a highly contagious respiratory infection commonly caused by viruses. Isolating the infant from others is crucial to prevent the spread of the infection to other vulnerable individuals, especially those with weakened immune systems. Encouraging play may not be appropriate as the infant is sick and needs rest. Limiting oral intake might be necessary if the infant is having difficulty swallowing due to respiratory distress. Placing the infant on their back for naps is a safe sleep practice but not the priority in this situation where preventing transmission of the infection is crucial.