Answer:
Initiate CPAP.
Step-by-step explanation:
Continuous positive airway pressure (CPAP) may be defined as a type of the postive airway pressure that helps in opening the alveoli lungs. This increases the lung surface area for ventilation.
The 89 year old man has acute shortness of breath that awakes him from sleep. This indicates that the individual needs CPAP, this increase the breathing and input of more oxygen in the body. In case of the sleep apnea breathing problems CPAP is used.
Thus, the answer is initiation of CPAP.