How to personalize your pump and CGM alarm settings

alarm clock

There are many different alerts and alarms built-in to insulin pump and continuous glucose monitoring (CGM) systems today, which may be overwhelming if you turn them all on at once or set them to levels that aren’t right for you. Your MiniMed insulin pump and CGM allows you to personalize various features and alarms to customize your diabetes management. 

One way to personalize your alerts is to set different levels for different times of the day, depending on your blood sugar trends throughout the day. For example, you can set up to 8 different high and low limits for a 24-hour period. You can also adjust your settings or turn alerts on/off over time to accommodate your diabetes management needs. 

In addition to personalizing where you set your limits, you can also adjust how often you are alerted to certain alerts and alarms to avoid getting too many repeat alarms as your blood sugars adjust to treatment/corrections. 

The High and Low Repeat settings notify you that your sensor glucose is still at or below your Low/High limits after a period of time has passed. This setting applies to Glucose Limit, Rate of Change, and Predictive Alerts, and can be set between five minutes to one hour for low alerts, and five minutes to three hours for high alerts. So if you set a Low Repeat at 20 minutes and you receive a Low Glucose Alert, you will receive another Low Glucose Alert in 20 minutes if your sensor glucose is still at or below your programmed low glucose limit. Personalizing this setting to a timeframe that you are comfortable with is key for avoiding too many alarms. 

Here’s how it would play out with your pump. Let’s say you set your Low Glucose Limit for 70mg/dL and the Low Repeat is at 5 minutes. Your sensor glucose reads 62 mg/dL with an up arrow and the low alert goes off. It looks like your sensor readings will go back up, so do you want to hear alerts every five minutes until the sensor reads above the threshold limit? Probably not, but if you set the Low Repeat to 20 minutes, you could have avoided those unnecessary alerts because the alert would not have been triggered for another 20 minutes in case you were still below the limit. 

For those individuals that use the Threshold Suspend feature, Low Repeat also applies to that alarm and can help you avoid unnecessary repeated alarms when you treat and restart the basal. Remember, the suspend threshold limit can be set between 60 and 90 mg/dL. 

We recommend discussing your alerts with your doctor as small changes could be helpful for your pump and CGM experience. Learn more about the button pushing steps for these alerts here.



Medtronic Diabetes insulin infusion pumps, continuous glucose monitoring systems and associated components are limited to sale by or on the order of a physician and should only be used under the direction of a healthcare professional familiar with the risks associated with the use of these systems. MiniMed 530G with Enlite is intended for the delivery of insulin and continuous glucose monitoring for the management of diabetes mellitus by persons 16 years of age or older who require insulin. 

Pump therapy is not recommended for people who are unwilling or unable to perform a minimum of four blood glucose tests per day. Insulin pumps use rapid-acting insulin. If your insulin delivery is interrupted for any reason, you must be prepared to replace the missed insulin immediately. 

The information provided by CGM systems is intended to supplement, not replace, blood glucose information obtained using a home glucose meter. A confirmatory fingerstick is required prior to making adjustments to diabetes therapy. MiniMed 530G with Enlite is not intended to be used directly for preventing or treating hypoglycemia but to suspend insulin delivery when the user is unable to respond to the Threshold Suspend alarm and take measures to prevent or treat hypoglycemia themselves. 

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WARNING: The Threshold Suspend feature will cause the pump to temporarily suspend insulin delivery for two hours when the sensor glucose reaches a set threshold. Under some conditions of use the pump can suspend again resulting in very limited insulin delivery. Prolonged suspension can increase the risk of serious hyperglycemia, ketosis, and ketoacidosis. Before using the Threshold Suspend feature, it is important to read the Threshold Suspend information in the MiniMed 530G System User Guide and discuss proper use of the Threshold Suspend feature with your healthcare provider.


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