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You can also purchase the FreeStyle Libre system and sensors at your local pharmacy.
No, it can easily be applied without the need for a doctor or nurse — an applicator makes it simple to replace the sensor.
The sensor is 5 mm in height and 35 mm in diameter — about the size of a toonie.
The reader can be up to 4 cm away from the sensor and still capture data.
The sensor automatically measures glucose levels every minute and stores readings every 15 minutes.
When the sensor is scanned, the sensor automatically transmits 8 hours of data.
A sensor lasts up to 14 days before needing to be replaced.
The portion of the sensor that is inserted under the skin is less than 0.4 mm wide and is inserted only about 5 mm under the skin.
Each time the sensor is scanned it automatically transmits data from the last minute, even if that data has not yet been stored.
The reader stores up to 90 days of glucose information.
Yes, the reader can get a glucose reading through clothing with a thickness of up to 4 mm.
Yes, FreeStyle Libre is designed to be water-resistant in up to 1 metre (3 feet) of water. We recommend it not be immersed longer than 30 minutes.
No, FreeStyle Libre does not require finger prick calibration. However, a finger prick test using a blood glucose meter is required in the following situations:
Yes, the FreeStyle Libre automatically captures readings day and night, so that glucose variations can be seen throughout the day — including nighttime lows — as long as the sensor is replaced at least every 14 days and scanned at least once every 8 hours.
With each scan over the sensor, the reader displays: the current glucose reading, the latest 8 hours of glucose history and where glucose levels are heading.
While wearing the sensor, users generally won’t feel anything under the skin. In a clinical user experience study, over 90 %% of participants did not feel discomfort under the skin while wearing the sensor. [NTD: Reference is Data on file, Abbott, Study ADC13-133, DOC33315].
The FreeStyle Libre reader is designed to be used only with the FreeStyle Precision blood glucose and blood ketone test strips and MediSense control solution.
ISF is a reasonable alternative for blood. Glucose can be measured in the ISF–the fluid around the body’s cells where glucose freely diffuses from capillaries to the interstitial space.1 The physiological delay in ISF glucose with respect to changes in blood glucose is about 5-10 minutes2 which is unlikely to impact routine day-to-day treatment decisions. The average lag time of the FreeStyle Libre system is approximately 5 minutes.3
Glucose levels can be measured from the bloodstream, or from the interstitial fluid (ISF), which surrounds the body’s cells. There is a 5- to 10-minute delay in ISF glucose response to changes in blood glucose,1 which is unlikely to impact routine day-to-day treatment decisions. The average lag time of the FreeStyle Libre system is approximately 5 minutes. 2ISF glucose and BG measurements taken simultaneously won’t always match, and, in fact, are likely to be different.
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