A resident is subacute care is lying in bad and suddenly becomes short of breath. Which of the following is the best response by the nursing assistant?
a. Quickly inform the nurse or charge nurse about the resident's change in condition and ask for assistance.
b. Administer oxygen to the resident and then notify the nurse or charge nurse.
c. Leave the resident alone and wait for the nurse to check on them during the next rounds.
d. Call 911 and wait for emergency medical services to arrive.