A Patient Is to Receive Medication Through a Nasogastric Tube

A patient is to receive medication through a nasogastric tube.What is the most important nursing action to ensure effective absorption?

A) Thoroughly shake the medication before administering.
B) After all medications are administered, flush tube with 15 to 30 mL of water.
C) Position patient in the supine position for 30 minutes.
D) Clamp suction for 30 to 60 minutes after medication administration.