SEVEN PLUS User’s Guide | 67
This chapter will teach you how to view your SEVEN PLUS continuous glucose
trend information. Once you have successfully calibrated, the SEVEN PLUS
will show you continuous glucose information every 5 minutes. This will tell you
how your glucose levels are changing.
Your ngerstick blood glucose meter only tells you your blood glucose level at one point in
time (like a still picture). However, the SEVEN PLUS Trend Graphs and Trend Arrows (Rate
of Change) will help you understand the direction your glucose level is moving (like a video
camera).
The SEVEN Sensor sits in the uid under your skin, not in your blood. The Sensor calculates a
glucose reading from this uid when you calibrate your System. So, the glucose reading you see
on your Receiver may be about 5-10 minutes behind the ngerstick reading you get from your
blood glucose meter. The SEVEN PLUS System readings can be 10-20% different from your
meter readings. It is important that you focus on the trends and rate of change on your Receiver,
rather than the exact glucose reading. The Trend Graphs and Arrows will help you determine
how fast your blood glucose is rising or falling. Chapter 10, Section 10.1, “Device Performance
Characteristics” tells you how closely your SEVEN PLUS readings will be to a laboratory
analyzer in the doctor’s ofce.
Glucose Alerts and the Low ALARM are designed to help you stay within your target glucose
zones. Your Low and High Glucose Alerts, and Rapid Rise and Rapid Fall Alerts can tell you
when you fall outside of your target glucose range. Your Alerts are personal tools that you can
set (see Chapter 2, Section 2.3, “Setting your Alerts”) and are determined by you and your
diabetes healthcare team. Your Low Glucose ALARM can tell you when your glucose levels may
be reaching potentially dangerous low levels.
In addition to Alerts and the ALARM, you can also enter information about your meals, insulin,
exercise, and health. That way you and your diabetes care team can receive a bigger picture of
your diabetes management plan. You can see this information on an every 5-minute basis by
looking at your trend screen.Your diabetes healthcare team can transfer this information to the
Data Manager software to see how you are doing over a long period of time.
You must update SEVEN PLUS calibration every 12 hours at a
minimum. The performance of the System when calibrated
less frequently than every 12 hours has not been studied.
Use of acetaminophen-containing medications while the Sensor
is inserted may affect the performance of the device.
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