A newly hired nurse is administering medications via a double-lumen nasogastric tube with an air vent. Which action requires follow-up?

• A. Irrigates the air vent before medication administration with water
• B. Contacts the pharmacy to obtain available medications in liquid form
• C. Flushes the NGT between medications with water
• D. Administers each medication separately through the NGT

Answer: (A)

The main idea is that medications for a double-lumen nasogastric tube with an air vent must be given through the medication lumen, while the air vent is kept dry and is not used for administering or flushing fluids. Irrigating the air vent with water is inappropriate because it can push fluid into the vent lumen or the airway, disrupt the vent’s pressure-relief function, and introduce contamination. This misstep needs follow-up to correct the technique and prevent potential complications.

In practice, you’d ensure meds are provided in liquid form when possible, or properly prepared for NG administration, flush the lumen between meds with water to maintain patency, and administer each medication separately to avoid interactions and ensure accurate dosing.