The FreeStyle Libre does not require any calibration it takes about 60 minutes to warm up after insertion. The Libre will also provide an HbA1c estimate itself.
It will also retain information for 90 days, which handily is the timeframe that encompasses our traditional method of long-term glucose monitoring, the HbA1c. The sensor monitors glucose every 15 minutes and as long as the sensor is scanned, it will retain the previous eight hours of readings. The sensor requires a reader to access the glucose data but will also conveniently access the information via an app that can be downloaded onto a smartphone. 1 Because of the 15-minute turnaround time of glucose values, it has been termed a “flash glucose monitor” rather than a “continuous glucose monitoring” (CGM) sensor. However, measurement of this interstitial fluid has been proven to reliably reflect glucose levels. The glucose in the interstitial fluid is not simultaneously at exactly the same level as the blood glucose (which is the most accurate way of testing for glucose), but it does change in response to the blood glucose with about a 10 to 15-minute delay. This applicator goes into the back of the upper arm and measures glucose levels in the interstitial fluid (the fluid that surrounds cells) in the subcutaneous tissues (the deepest layer of your skin). It uses a sensor that is easily inserted with an applicator. How I like to approach giving my patients the device.īut before we continue, take a quick look at what the FreeStyle Libre looks like.The conditions of receiving it on the NHS.How you can get the Freestyle Libre on the NHS.
The FreeStyle Libre is a novel method of monitoring glucose that doesn’t involve the traditional pricking of fingers to obtain a blood sample.įor years I’ve helped patients enhance their diabetes management using the FreeStyle Libre. If you are reading this article, you probably already have some idea what the FreeStyle Libre is and are seeking some insights into its use for diabetes, but there will be a few of you out there who are Libre naïve and inquisitive to know what all the fuss is about.
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