A nurse is preparing to administer an enteral feeding to an adolescent who has an NG tube. Which of the following actions should the nurse take first?

A. Attach the feeding bag tubing to the end of the NG tube: Attaching the feeding bag tubing should occur only after confirming correct tube placement. Connecting the feeding before verification increases the risk of administering formula into the lungs if the tube is misplaced. B. Flush the tube with water: Flushing helps maintain tube patency, but it should be done after placement has been verified. Flushing an incorrectly placed tube could introduce fluid into the respiratory tract, posing a serious safety risk. C. Set the administration rate on the feeding pump: Setting the feeding rate is part of the preparation process but is not the priority action. Safety measures, particularly verifying tube placement, must be completed before adjusting pump settings. D. Check the pH of the gastric secretions: Verifying NG tube placement is the first and most critical step prior to administering enteral feeding. Checking the pH of aspirated gastric contents helps confirm gastric placement and reduces the risk of aspiration or respiratory complications.