Continuous Glucose Monitoring

Continuous Glucose Monitoring (CGM) provides the complete picture by revealing lows and highs that HbA1C and fingerstick testing alone cannot always identify.


  • What continuous glucose monitoring is and how it can help you

If you are using the CGM features of your pump, you can see your glucose levels 24 hours a day. The pump, when combined with the Guardian 2 Link transmitter and the New Generation Enlite glucose sensor, wirelessly transmits readings to your MiniMed® 640G. The readings are updated every five minutes and appear on the screen in colour. These regular updates can give you a clear understanding of how your glucose is behaving and reduce your dependence on fingersticks*. You only need to change your glucose sensor every 6 days.


The advantages of CGM over traditional fingersticks and HbA1c testing are well-documented. Research has shown that:

  • 60% of glucose lows may not be revealed with fingersticks alone1
  • CGM identifies four times as many serious glucose excursions as self-monitoring of blood glucose (SMBG)2
  • CGM can significantly reduce HbA1c and has been shown to reduce  HbA1c levels by up to 1% when compared with fingerstick testing alone 3
  • CGM is proven to be accurate in numerous published studies enabling you to make therapy adjustments based on reliable data


The anecdotal and real-life stories from patients using CGM are overwhelming and includes:

  • Parents who can relax and no longer feel that they have to check on their child through the night
  • Sports enthusiasts and students who can concentrate on competing or taking their exams without worrying
  • People with busy work lives who can be as busy as they like and get on with their day-to-day activities with less anxiety
  • Women who are pregnant or are thinking about becoming pregnant

CGM has given people insights that they have never had before. With the establishment of the National Institutes for Health and Care Excellence (NICE) guidance for pump therapy, access to CGM is improving every day. NICE has also published guidance on continuous glucose monitoring in adults & children. Take a look at these so you can discuss this fully with your healthcare team.



  • 1Pitzer KR, Desai S, Dunn T, et al. Detection of hypoglycemia with the GlucoWatch biographer. Diabetes Care. 2001;24(5):881-885.
  • 2Kaufman FR, et al. Diabetes Care. 2001;24(12):2030-2034
  • 3Raccah D, Sulmont V, Resnik Y, et al. Incremental value of continuous glucose monitoring when starting pump therapy in patients with poorly controlled type 1 diabetes: the RealTrend Study. Diabetes Care. 2009;32(12):2245-2250
  • * This data is intended to supplement, not replace, blood glucose information obtained using standard home blood glucose monitoring devices. Fingersticks are required when adjusting insulin delivery and for calibrating the glucose sensor. Values are not intended to be used directly for making therapy adjustments, but rather to provide an indication of when a meter blood glucose measurement may be required. All therapy adjustments should be based on measurements obtained using a home glucose meter and not on CGM system values.
  • ** Internal date on file; Medtronic MiniMed, Inc

Guardian™ 2 Link transmitter is only compatible with MiniMed® 640G insulin pump

MiniLink™ transmitter is compatible with MiniMed Paradigm® Veo™ system


The content and all information provided on this website is for your informational use only and is not intended to be a substitute for professional medical advice, diagnosis or treatment in any manner. The patient stories provided are experiences specific to a particular patient. Responses to a treatment may vary from patient to patient. Always talk with your physician about diagnosis and treatment information and ensure that you understand and carefully follow that information.

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