A nurse is planning the discharge of an infant who has tetralogy of Fallot. The nurse anticipates the need for which of the following equipment?

A. Portable suction: Portable suction is typically needed for clients who have airway clearance difficulties or excessive secretions. Infants with tetralogy of Fallot do not usually require suctioning at home unless another respiratory condition is present, so this equipment is not routinely indicated for discharge planning. B. Cervical collar: A cervical collar is used for immobilization following trauma or cervical spine instability. There is no association between tetralogy of Fallot and spinal injuries, so this item would not be relevant or expected in the discharge needs of this infant. C. Hemodialyzer: A hemodialyzer is used for clients requiring dialysis due to renal failure. Tetralogy of Fallot does not involve kidney dysfunction, and infants with this condition do not require dialysis equipment at home, making this option inappropriate. D. Pulse oximeter: A pulse oximeter allows parents to monitor oxygen saturation levels at home, an essential need for infants with tetralogy of Fallot who are at risk for hypoxemia due to right-to-left shunting. Early detection of drops in oxygen saturation helps families respond promptly to cyanotic spells, making this the most appropriate equipment.