A nurse is planning care for a client who has a prescription for continuous enteral feedings through an NG tube. Which of the following actions should the nurse plan to take?

Measuring gastric residual volumes every 4 hours assesses tolerance of the feeding and identifies delayed gastric emptying, which increases aspiration risk. NG tubes are flushed with sterile water (not saline) unless otherwise indicated, and the flush amount may vary by protocol. The head of bed must be elevated at least 30–45° (not 20°) to prevent aspiration. Feeding rates are advanced per protocol — typically every 8–12 hours, not every 2 hours.