User Manual

System Function

The Guardian RT measures glucose levels in interstitial fluid: the fluid found between the body’s cells. It

is from this fluid that cells get oxygen and nutrients, including glucose. Glucose levels in interstitial fluid

typically match glucose levels in the blood. The system gives real-time interstitial fluid glucose values on

demand (updated every five minutes). The system also features low glucose and high glucose alerts that

are triggered once limits you have preset are reached. Data from the Sensor (which is placed under the

skin into the interstitial fluid) triggers the low blood glucose alert if your Sensor glucose value is less than

or equal to the preset limit. The high blood glucose alert is triggered if your Sensor glucose value is

greater than or equal to the preset limit. Glucose values are calculated and displayed based on the blood

glucose reference values entered periodically into the Monitor for calibration.

NOTE -

Before taking action based on glucose values or High and Low glucose alerts, check your blood

glucose using a home glucose meter available from your doctor or pharmacy.

System Components

Glucose Sensor

Figure 1.2

The Sensor (MMT-7002) is inserted through the skin into interstitial fluid. The Sensor

gives off a signal that is related to the amount of glucose in the interstitial fluid at the

insertion site. (See Figure 1.2.)

Transmitter

Figure 1.3

The Transmitter (MMT-7700) connects to the Sensor and is fixed to the skin with

medical tape. The Transmitter receives and processes signals from the Sensor,

and it sends the signals by radio frequency to the Monitor. (See Figure 1.3.)