Older adult wearing a glucose monitoring sensor on the upper arm

A Resident Uses a Continuous Glucose Monitor: Who Responds to Alerts?

ByNHP Specialist Care Team

Continuous glucose monitors (CGMs) can provide real-time glucose information, trends, and alerts. But moving into assisted living or a nursing home creates a practical question that is easy to miss:

Who is actually responsible for seeing and responding to the alerts?

A sensor on the resident’s arm does not create a complete care plan by itself.

Identify every part of the system

Before admission, document:

CGM brand/model: ____________________
Display device: phone / receiver / pump / other
Who owns the phone or receiver: ____________________
Who receives remote-sharing alerts: ____________________
Prescribing clinician: ____________________
Backup glucose-meter plan: ____________________

Some CGMs communicate with a dedicated receiver. Others rely partly on a smartphone or integrate with an insulin pump or automated insulin-delivery system.

The facility must understand the exact setup—not just the word "CGM."

Decide who owns the alert response

Ask the care team:

  • Does the resident independently manage the CGM?
  • Are staff expected to hear or view alerts?
  • Which staff role responds?
  • Are alerts visible at the nurses’ station or only on the resident’s phone?
  • What happens overnight?
  • What happens if the resident is asleep, confused, or unable to respond?
  • What happens if a family member receives a remote alert but facility staff do not?

Write the agreed process into the care plan rather than relying on informal expectations.

Check smartphone and receiver settings after updates

FDA has warned that smartphone-compatible diabetes devices can miss critical alerts after changes involving phone hardware, software, app permissions, audio settings, or connected accessories.

For a resident whose CGM depends on a phone, ask who is responsible for checking that:

  • the phone remains charged;
  • Bluetooth or other required connections are functioning;
  • notifications remain permitted;
  • alert volume and sound settings meet the resident’s plan;
  • the app is still working after an operating-system update; and
  • the device has not been left in another room.

Do not assume an alert system is functioning because it worked last week.

Know the backup measurement plan

CGM systems differ, and device labeling has changed over time.

The resident’s clinician and device instructions should specify when a traditional blood-glucose meter is used—for example, when a reading does not match symptoms, the sensor appears unreliable, or the device instructs the user to confirm.

Ask:

  • Is a compatible blood-glucose meter available?
  • Are unexpired test strips available?
  • Who may perform the check?
  • Where is the backup order documented?
  • Who is called when CGM and symptoms do not match?

Do not invent a universal fingerstick schedule if the resident’s prescribed plan does not require one.

Separate an alert from a treatment order

A CGM may show or predict high or low glucose, but staff still need an authorized clinical plan for what happens next.

Ask whether the chart contains current instructions for:

  • low-glucose alerts;
  • high-glucose alerts;
  • repeated alerts;
  • sensor failure;
  • inability to obtain a reading;
  • illness or poor intake; and
  • when the diabetes clinician is contacted.

Family members should not remotely direct insulin doses or other medication changes unless they are authorized under the care plan and prescriber instructions.

Clarify family sharing

Many CGM systems let users share data with relatives.

That can be useful, but it can also create confusion if a daughter receives an alert at home and assumes staff are seeing the same thing.

Ask:

  • Is family sharing part of the formal care plan or just an optional convenience?
  • Who should the family call after a concerning alert?
  • Is there a routine non-emergency contact number?
  • When should family call 911 instead of the facility?
  • Does the resident consent to the family member receiving the data?

Remote sharing should support—not replace—the facility’s own responsibilities.

Plan for sensor changes and supplies

Ask who is responsible for:

  • ordering sensors;
  • receiving deliveries;
  • replacing sensors at the prescribed interval;
  • helping with placement if the resident cannot self-apply;
  • contacting the manufacturer or clinician if a sensor fails; and
  • keeping the backup meter available during replacement gaps.

Facility ability to assist with sensor insertion or device management can vary by setting and state rules.

CGM admission checklist

  • [ ] exact CGM identified;
  • [ ] display device identified;
  • [ ] alert receiver/owner identified;
  • [ ] overnight alert plan documented;
  • [ ] phone/receiver charging plan documented;
  • [ ] backup glucose meter available if ordered;
  • [ ] low/high alert clinical orders current;
  • [ ] clinician contact route documented;
  • [ ] family-sharing permission clarified; and
  • [ ] sensor-supply/replacement owner identified.

Frequently asked questions

Does the CGM automatically notify nursing-home staff?

Not necessarily. It depends on the device, receiver, phone, sharing setup, and facility workflow. Verify exactly who sees alerts.

Should staff treat every CGM number without confirming it?

Follow the resident’s prescribed diabetes plan and the device’s instructions. Some situations require confirmation with a blood-glucose meter, especially when symptoms and sensor readings do not match.

Can family members watch the CGM from home?

Many systems support data sharing, but access depends on the device and resident permission. Remote family viewing should not be mistaken for the facility’s clinical alert system.

The practical goal

For every important CGM alert, there should be a clear answer to three questions:

Who sees it? Who assesses it? What written order tells them what to do next?

Primary sources checked

Editorial/source review: October 16, 2026. General education only. Glucose thresholds, backup testing, insulin or other medication decisions, device settings, and emergency response must follow the resident’s prescribed diabetes plan and device instructions.

Next step for families: Browse senior-care communities to compare local options, or use the Care Finder to organize the care needs and your next questions. Always verify current services, staffing, clinical capability, costs, and availability directly with the provider.

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