Nasogastric Tube Placement Guide

Posted on: April 8, 2025, by :

✅ Preparation: 

  1. Wash your hands thoroughly with soap and water or use hand sanitizer. 
  1. Prepare skin protection: 
  • Cut a piece of DuoDERM®, Tegaderm®, or hypoallergenic tape large enough to secure the tube and protect your child’s cheek from irritation. 
  • Apply it to the cheek where the tube will rest. 
  1. Measure the correct length for insertion: 
  • Measure from the tip of the nose (A) → to the earlobe (B) → to the midpoint between the xiphoid (bottom of the breastbone) and the umbilicus (belly button) (C)
  • Mark this point (C) on the tube with a permanent marker or a small piece of tape—this is your insertion depth
  1. Position the child: 
  • Infants: Swaddle and lay them on their back with the head in a neutral position. 
  • Older children: Sit upright with head in a neutral or slightly flexed position to ease passage of the tube. 

✅ Insertion Procedure: 

  1. Lubricate the tip of the tube with water-soluble lubricant (Do NOT use Vaseline® or oil-based products). 
  1. Gently insert the tube into the selected nostril and aim straight back toward the ear, not upward. 
  1. Advance the tube slowly and steadily: 
  • If resistance is felt, stop. Do not force. 
  • Gently withdraw and reposition or re-lubricate if necessary. 
  1. Encourage swallowing (if age-appropriate) by: 
  • Offering small sips of water or using a straw for older children. 
  • Providing a pacifier or allowing sucking for infants to help guide the tube. 
  1. Continue inserting the tube until your mark is at the nostril. 

✅ Secure the Tube: 

  • Attach the tube to the prepared DuoDERM®/Tegaderm® base on the cheek. 
  • Add an additional piece of tape across the tube for securement. 
  • Avoid pulling tension on the tube to prevent pressure sores. 

✅ Confirm Placement (Critical Safety Step): 

  • Best Practice: Confirm NG tube placement with pH testing of aspirate (pH <5 suggests gastric placement). 
  • If unable to aspirate:  
  1. Check for air bolus sound over the stomach (less reliable). 
  1. X-ray confirmation is the gold standard for initial placement in clinical settings or if in doubt. 

⚠ Safety Tips: 

  • Never force the tube if resistance is met. 
  • Stop if the child has persistent coughing, gagging, or shows signs of distress—tube may be in the airway. 
  • Always confirm tube position before every feed or medication administration. 

✅ Example: NG Tube Placement Video – OPENPediatrics 

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