Final answer:
The subject is Medicine. The answer is d) Clear obstruction in the nasogastric tube. Irrigate the NG tube with 20 mL of normal saline to try to unclog it.
Step-by-step explanation:
The subject of this question is Medicine. The question pertains to the management of a nasogastric (NG) tube obstruction. The answer to the question is d) Clear obstruction in the nasogastric tube.
The best course of action to try to unclog the NG tube is to irrigate it with 20 mL of normal saline. This can help clear any obstructions and ensure proper functioning of the tube.
Other options mentioned in the question, such as performing nasogastric tube insertion, administering enteral feeding through the tube, and managing constipation, are not directly related to clearing the obstruction in the nasogastric tube.