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Step 1 - position sensor

When starting sensor placement a screen to help with sensor positioning. This will inform you about the headband tightness. Before placing the sensor on the patient's head the option will show that the sensor is too loose.

SENSOR PLACEMENT

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POSITION = The sensor must be positioned in the region of the temples (mid eyebrow line), i.e., at 15% of the reference point Fpz towards the Oz reference points at the back of the head following the circumference of the skull.

POSITION = The sensor should contact the scalp in the temporoparietal region about 2 inches (5-6 cm) above the entrance of the external acoustic meatus in the coronal plane and just below the head protrusion where the circumference is greatest.

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Step 2 - tighten turnbuckle

Once the sensor is placed, tighten the turnbuckle into a snug, comfortable fit, turning it clockwise until a final click can be heard without excessive force. A proper adjustment will result in a green OK! on the app screen.

• If the patient is awake, ask if he is comfortable with the pressure. If not, readjust the headband for a comfortable fit.

• In conditions where patients are unresponsive, check for signs of discomfort or skin damage for at least every five minutes.