Final answer:
The traditional method to determine nasogastric tube placement is through radiography or x-ray.
Step-by-step explanation:
The traditional method used to determine nasogastric tube placement is through the use of radiography or x-ray.
This involves inserting a tube into the throat, stomach, and upper part of the small intestine, and then taking an x-ray to confirm its location.
For example, in Figure 18.7.3, a doctor inserts a small camera through a tube called an endoscope to examine a patient's upper GI tract for peptic ulcers.
The image created by the camera is viewed on a screen.
Using radiography or x-ray helps ensure that the nasogastric tube is correctly placed and positioned in the body.