Mrs. Welker is receiving enteral nutrition through a gastrostomy tube. Which of the following actions should the nurse assistant take?
1) Keep Mrs. Welker lying flat for 30 minutes after a tube feeding
2) Give Mrs. Welker water by mouth
3) Use cotton balls moistened with alcohol to clean around Mrs. Welker's mouth and nose
4) Keep the head of the bed elevated for 30 minutes following a tube feeding