Who Can Use CGM? Diabetes Guidelines and Time in Range
CGM can provide useful information for diabetes care, but suitability depends on the person and the device. The decision should include treatment, low-glucose risk, the ability to use the system and what the glucose information will help you do.
Buying a sensor is only the beginning. A plan for interpreting its readings, responding to alerts and reviewing results with a clinician makes the information more useful.
Type 1 diabetes NICE guidance recommends offering adults with type 1 diabetes a choice of real-time or intermittently scanned CGM based on their needs and preferences. This is UK clinical guidance, not a statement about Pakistan funding or entitlement.
The practical discussion includes alerts, usability, phone support, pump compatibility, calibration and access to training. The best setup for an independent adult may differ from one for a person who relies on a caregiver.
Type 2 diabetes NICE identifies specific groups using insulin who may benefit from CGM, including people with recurrent or severe hypoglycaemia, impaired awareness or difficulty performing finger-prick monitoring. This does not mean every person with type 2 diabetes needs the same device or continuous use.
Ask your own clinician what question the sensor is intended to answer. It may support a longer-term monitoring plan or a defined period of review. Keep backup testing available according to your care plan.
Children, pregnancy and other situations Use the age range and indications for the exact supplied device. An age approval on one manufacturer’s website is not transferable to another sensor, and regional instructions may differ. Pregnancy requires a separate clinical discussion and an appropriately indicated monitoring system.
If you do not have diagnosed diabetes, ask what benefit is expected before purchasing a sensor for general wellness. Do not diagnose diabetes or change medication from an isolated CGM graph without proper clinical assessment.
What does time in range mean? Time in range is the proportion of readings within an agreed glucose interval. The American Diabetes Association describes 70–180 mg/dL as a common range and at least 70% as a common goal, while emphasizing that individual targets can differ.
A percentage is more helpful when reviewed alongside low readings, high readings, missing data and relevant events. It should not become a reason to chase every small fluctuation or to make repeated medication changes without guidance.
Prepare for a useful review Bring the report period, medication list and notes about meals, exercise, symptoms and sensor interruptions. Ask your clinician which patterns need attention and what specific action is appropriate. CGM reports complement clinical assessment and A1C information rather than replacing every other measurement.
For a first purchase, compare continuous glucose monitoring devices in Pakistan after agreeing on your requirements. Ask for practical training and a clear plan for situations when the sensor fails, the result seems wrong or you feel unwell despite a reassuring reading.
Related guides
What Is CGM? How Continuous Glucose Monitoring Works
How to Choose a CGM System: Brands, Features and Support
Sources
NICE: Type 1 diabetes, CGM recommendations
NICE: Type 2 diabetes, blood glucose management
American Diabetes Association: CGM and time in range
Prepared by CGM Pakistan. Sources checked 8 November 2026. This educational guide has not been independently reviewed by a clinician. Follow the instructions for your supplied device and your healthcare professional’s advice.