When assessing PEG tube placement, the nurse should check placement by which method?

When assessing PEG tube placement, the nurse should check placement by which method?

• A. Ultrasound.
• B. Gastric aspiration.
• C. Endoscopy.
• D. Capillary blood gas.

Answer: (B)

Verifying PEG tube placement at the bedside is done by aspirating the tube contents and checking the pH to confirm gastric location. Obtaining gastric aspirate and finding a low, acidic pH (typically below about 5) indicates the tube is in the stomach, allowing feeds to begin safely. If aspirate can’t be obtained or the pH is inconclusive, radiographic confirmation is the more definitive method, but among bedside checks, gastric aspiration with pH testing is the standard approach. Ultrasound isn’t routinely used to confirm PEG tube position and can be unreliable for precise tube localization. Endoscopy would visualize the tube from inside the gastrointestinal tract but is invasive and not a quick bedside check. Capillary blood gas measures blood gas status, not the tube’s actual location, so it doesn’t help verify placement.

Verifying PEG tube placement at the bedside is done by aspirating the tube contents and checking the pH to confirm gastric location. Obtaining gastric aspirate and finding a low, acidic pH (typically below about 5) indicates the tube is in the stomach, allowing feeds to begin safely. If aspirate can’t be obtained or the pH is inconclusive, radiographic confirmation is the more definitive method, but among bedside checks, gastric aspiration with pH testing is the standard approach.

Ultrasound isn’t routinely used to confirm PEG tube position and can be unreliable for precise tube localization. Endoscopy would visualize the tube from inside the gastrointestinal tract but is invasive and not a quick bedside check. Capillary blood gas measures blood gas status, not the tube’s actual location, so it doesn’t help verify placement.