Continuous Glucose Monitoring and Insulin Pumps introduce technology-dependent diabetes management with unique nursing safety priorities. A CGM sensor transmits glucose readings every 1–5 minutes from interstitial fluid — it lags 10–15 minutes behind blood glucose during rapid changes. The nurse always confirms CGM readings with a fingerstick before treating hypoglycemia, especially during exercise, rapid glucose shift, or acute illness. CGM alarms (low alert, high alert, rapid change arrows) require clinical interpretation — an alarm during a seizure is acted on immediately. An insulin pump delivers basal insulin continuously and bolus doses with meals. Pump failure (kinked catheter, empty reservoir, infusion site infection, disconnected tubing) causes DKA within hours because there is NO long-acting insulin backup. The nurse does not disconnect the pump without a provider order and a backup insulin plan. Boards test: CGM lag interpretation; recognizing DKA from pump failure (new-onset vomiting + glucose rising + ketones in a pump-dependent patient); and the nurse's role in reporting pump-site infections.