Invasives GI Practice Exam

How often should residual be checked during bolus tube feeding?

Check residual every 2 hours. Check residual every 6 hours. Check residual every 4 hours. Do not check residual.

Correct Answer:

Check residual every 4 hours.

Explanation:

Gastric residual volume helps you assess how well the stomach is emptying during enteral feeding and whether the patient is tolerating the feed without increasing aspiration risk. For bolus tube feeding, checking residual every 4 hours provides a good balance: it’s frequent enough to catch delayed gastric emptying early, but not so frequent that it unduly interrupts feeding. Checking more often (such as every 2 hours) can disrupt the feeding schedule without proven added safety, while checking less often (like every 6 hours) might miss early signs of intolerance. Of course, residual checks should not be neglected—elevated residuals can signal poor motility or rising aspiration risk, prompting reassessment or a temporary hold if thresholds are met.

Access more questions from this quiz

Continue to Invasives GI Practice Exam for more practice questions and the full quiz experience.

Access More Questions