An Older-Adult Patient with a Nasal Cannula and Extension Tubing

An older-adult patient with a nasal cannula and extension tubing is able to get out of bed independently.What teaching by the nurse is indicated for this patient?

A) Put on slippers whenever walking.
B) Take off the oxygen if only going to the bathroom.
C) Be careful not to trip over the extra oxygen tubing.
D) Increase the flow rate a little before getting out of bed.