The nurse is checking the client's nasogastric tube for placement prior to administering the client's first tube feeding. Which is the most accurate means of assessing placement?
1. Checking the pH of stomach contents aspirated from the tube
2. Infusing air into the tube and auscultating for the sound of the air over the stomach
3. Obtaining an x-ray
4. Checking for residual
Correct Answer: 3
The most accurate means of assessing placement prior to the first tube feeding is obtaining an x-ray, because this ensures exact location of the tube. Checking pH of stomach contents is the most cost-effective means of assessing placement, and minimizes the client's exposure to radiation. Infusing air and auscultating are not an accurate means of checking placement, because a tube that is high in the esophagus will still sound as though it is properly placed. Checking for residual is also a useful means of assessing placement, but not as accurate as an x-ray.
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