The Client Has Symptoms of the Common Cold and Is

The client has symptoms of the common cold and is to be treated with a decongestant nasal spray. What is the nurse's highest priority instruction to the client?

A) Use as many puffs as needed as often as necessary for up to 10 days.
B) Use one to two puffs four to six times daily for up to 5 to 7 days.
C) Use no more than one puff three times daily for up to 7 days.
D) Use two puffs two times daily for no longer than 3 days.