How accurate is Abbott FreeStyle Libre?

How accurate is Abbott FreeStyle Libre?

The overall accuracy of FreeStyle Libre and Dexcom G5 sensor was the same (mean MARD 12.8% and 12.5%, respectively; P = 0.57). Conclusions: FreeStyle Libre’s accuracy is adequate during its entire lifetime but is least accurate during its first and last days.

Should you rotate arms with the FreeStyle Libre?

It is customary for patients to rotate the FreeStyle Libre sensor application sites between arms to minimize skin irritation. There is limited data on the degree of inter-arm differences with CGM technology and whether any observed inter-arm differences are due to system precision or physiologic causes.

Where is the best place to put the FreeStyle Libre 2 sensor?

upper arm
Select an area of skin on the back of your upper arm that generally stays flat during normal daily activities (no bending or folding). Avoid areas with moles, scarring or tattoos. Choose a site that is at least 2.5cm (1 inch) away from an insulin injection site.

Why is FreeStyle Libre not accurate?

Differences in glucose readings between interstitial fluid and capillary blood may be observed during times of rapid change in blood glucose, such as after eating, dosing insulin, or exercising. Severe dehydration and excessive water loss may cause inaccurate results. Do not reuse Sensors.

Is FreeStyle Libre more accurate than finger stick?

The gold standard for accuracy is a blood draw measurement and both finger sticks and CGMs have error margins (MARD) to that standard. Finger sticks tend to be in the range of 5-10% MARD, while the Libre has a MARD of about 9.2% over 14 days.

Is the FreeStyle Libre 2 more accurate than FreeStyle Libre?

The difference between Libre and Libre 2 The FreeStyle Libre 2 sensor will measure glucose every minute and this is 5 times more readings than the other CGM devices on the market.

Can you put FreeStyle Libre on your belly?

Insertion of FSL sensors into the abdomen should be discouraged in patients with type 1 diabetes.

Can FreeStyle Libre 2 give false readings?

Interfering Substances: Taking ascorbic acid (vitamin C) while wearing the Sensor may falsely raise Sensor glucose readings. Taking salicylic acid (used in some pain relievers such as aspirin and some skin care products) may slightly lower Sensor glucose readings.

Which is more accurate FreeStyle Libre or finger stick?

How far behind is the Libre?

The average lag time between the FreeStyle Libre 2 sensor and blood glucose readings is by about 2.1 minutes for children and about 2.4 minutes for adults 8.

Why isn’t my FreeStyle Libre accurate?

How many times can you scan FreeStyle Libre?

You can use the FreeStyle Libre 2 reader or FreeStyle LibreLink app◊ to scan your FreeStyle Libre 2 sensor and receive your glucose levels and alarms. For a complete glycaemic picture, you must scan your FreeStyle Libre 2 sensor every 8 hours.

Which is more accurate blood glucose or interstitial fluid?

Blood and ISF differ in a number of aspects with respect to glucose: blood transfers glucose to all body sites while ISF transfers glucose to cells; blood is (relatively) easily accessible whereas ISF is tricky to access; BG levels can be measured with a high reliability—something that is more difficult with ISF …

Can the Libre sensor give false readings?

Can you scan Libre too often?

You can scan as often as you want, but the reading will never change more frequently than every 60 seconds.