What signifies that a patient with a SBO is ready to begin oral intake again?

The readiness for a patient with a small bowel obstruction (SBO) to begin oral intake again is primarily indicated by the improvement in bowel sounds. When bowel sounds are present and have improved in quality, it suggests that the intestines have regained function after the obstruction. This improvement indicates that the bowel is capable of peristalsis, which is vital for the proper movement of food and fluids through the digestive tract.

While absence of nausea, stable vital signs, and negative imaging results can contribute to an overall assessment of the patient's condition, they do not specifically confirm the resolution of the obstruction or the ability of the digestive system to handle oral intake. The presence of bowel sounds is the more direct indicator of intestinal readiness, as it reflects the restoration of normal gastrointestinal motility, which is crucial for safe oral refeeding.