The nurse is caring for a patient who is in an air-fluidized bed.She places the patient in a semi-Fowler's position using foam wedges,even though she realizes that:

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Although the use of foam wedges as needed is recommended (e.g.,elevating the head of the patient for position changes),areas supported by the foam wedges do not benefit from pressure relief of the bed's surface.
Do not position a patient in a prone (face-down)position on an air-fluidized bed.Suffocation may occur.In emergencies when resuscitation is required,press the CPR switch,and unplug the unit to defluidize the bed immediately.To turn patients,position bedpans,or perform other therapies,stop fluidization.Once the procedure is complete,set to continuous fluidization.Stopping fluidization provides firm,molded support that facilitates turning and handling the patient.Continuous fluidization provides permanent fluid support.

The Nurse Is Caring for a Patient Who Is in an Air-Fluidized