What is the primary reason to check the residual volume before administering feedings through a nasogastric tube?

Checking the residual volume before administering feedings through a nasogastric tube is primarily done to prevent aspiration. Residual volume reflects the amount of undigested food or fluid that remains in the stomach. If the volume is significantly high, it may indicate that the stomach is not emptying properly, which could increase the risk of feeding the patient and potentially causing the feed to be regurgitated and aspirated into the lungs. This aspiration can lead to serious complications such as aspiration pneumonia, which poses significant health risks.

The practice of measuring residual volume is a critical step in ensuring patient safety during enteral feedings. It helps healthcare providers make informed decisions about whether to proceed with feedings or to take other actions, such as adjusting the feeding rate or consulting with a physician. By prioritizing the prevention of aspiration through this assessment, healthcare professionals can protect the patient's respiratory health and overall well-being.