Final answer:
The correct action is to empty the colostomy pouch when it is one-third full to prevent leaks and skin irritation, while avoiding the use of alcohol-based solutions and excessive petroleum jelly which can interfere with pouch adhesion.
Step-by-step explanation:
A nurse is providing colostomy care for a client using a two-piece pouch system. The correct action that the nurse should take is to empty the pouch when it is one-third full. This practice helps prevent leaks and skin irritation since a too-full pouch can place undue pressure on the stoma and the surrounding skin.
It is also important to note that the skin around the stoma should be cleaned with mild soap and water and to avoid alcohol-based solutions which can cause dryness and irritation. Moreover, a thick layer of petroleum jelly is generally not recommended as it can interfere with the adherence of the pouch system to the skin. Proper adherence is crucial to maintaining skin integrity and preventing leaks.