
CHAPTER 1 • Introduction
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1.3 System Description
The t:slim X2™ insulin pump with
Control-IQ™ technology, referred to as
the “pump” or the “t:slim X2 pump,”
consists of the t:slim X2 insulin pump,
the embedded Control-IQ algorithm,
and the t:slim X2 3mL (300 units)
cartridge. The t:slim X2 pump must be
used with a compatible infusion set.
The t:slim X2 pump with Control-IQ
technology may be used in combination
with a compatible continuous glucose
monitor (CGM).
The Dexcom G6 CGM is compatible
with the t:slim X2 insulin pump with
Control-IQ technology. The Dexcom G6
transmitter may be referred to as the
“transmitter.” The Dexcom G6 sensor
may be referred to as the “sensor.”
Together, the Dexcom G6 transmitter
and Dexcom G6 sensor may be
referred to as the “CGM.”
The pump delivers insulin in two ways:
basal insulin delivery (continuous) and
bolus insulin delivery. The disposable
cartridge is filled with up to 300 units of
U-100 insulin and attached to the
pump. The cartridge is replaced every
48–72 hours.
The Control-IQ automated insulin
dosing feature is an algorithm
embedded in the t:slim X2 pump
software. This feature enables the t:slim
X2 pump to automatically adjust the
delivery of insulin based on CGM
sensor readings; however, the feature is
not a substitute for your own active
diabetes management. Control-IQ
technology utilizes the CGM sensor
readings to calculate a predicted
glucose value 30 minutes into the
future. For more information on how
Control-IQ technology is activated, see
Chapter 29 Introduction to
Control-IQ Technology.
The pump can be used for basal and
bolus insulin delivery with or without a
CGM. If a CGM is not used, sensor
glucose readings will not be sent to the
pump display and you will not be able
to use Control-IQ technology.
The sensor is a disposable device that
is inserted under the skin to
continuously monitor glucose levels.
The transmitter connects to the sensor
pod and wirelessly sends readings to
the pump, which acts as a receiver for
the therapeutic CGM, every 5 minutes.
The pump shows sensor glucose
readings, a trend graph, as well as the
direction and rate of change arrows.
The sensor measures glucose in the
interstitial fluid under the skin—not in
blood, and sensor readings are not
identical to readings from a blood
glucose (BG) meter.
1.4 About this User Guide
This user guide covers important
information on how to operate your
pump. It provides step-by-step
instructions to help you properly
program, manage, and care for the
pump. It also provides important
warnings and precautions on proper
operation and technical information to
ensure your safety.
The user guide is organized into
sections. Section 1 provides important
information you need to know before
you start using the pump. Section 2
covers instructions for using the t:slim
X2 pump. Section 3 covers instructions
for using CGM with your pump. Section