Safety and Infection ControlQuestion 1897 of 2368

A client has a double-lumen NG tube for decompression with a blue pigtail. How should the nurse manage the blue pigtail?

  1. Clamp it between suction cycles to keep air from entering the stomach
  2. Connect it to suction at the same time as the larger lumen of the tube
  3. Use it to irrigate the tube each shift with saline to help keep it patent
  4. Keep it open; never clamp it, connect it to suction, or irrigate through it
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Correct answer: Keep it open; never clamp it, connect it to suction, or irrigate through it

The blue pigtail is the air vent, which prevents the stomach lining from being pulled into the tube.

Source: Nursing Advanced Skills (Open RN, Chippewa Valley Technical College, 2023), Insert Nasogastric and Feeding Tubes: Types of NG Tubes. Licensed under CC BY 4.0.

Practice the topic "Safety and Infection Control"

Questions last reviewed: 18 October 2026