HESI Maternity Test Bank Related

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An infant with tetralogy of Fallot becomes acutely cyanotic and hyperneic. Which action should the nurse implement first?

  • A. Place the infant in a knee-chest position.
  • B. Administer morphine sulfate.
  • C. Start intravenous fluids.
  • D. Provide 100% oxygen by face mask.
Correct Answer: A

Rationale: In a tetralogy of Fallot situation, placing the infant in a knee-chest position is the initial priority to help increase systemic vascular resistance, which reduces the right-to-left shunt and improves oxygenation. This position can assist in optimizing oxygen levels before considering other interventions.