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Excerpt

name	6.7 - position sensor on patient

Step 1 - position sensor

Sensor placement is a key part of a monitoring session.

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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.

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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.

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Sensor too Lose	Sensor too tight
Excessive tightening will be indicated with a “sensor too tight” message. Loosen the turnbuckle until the green message of OK! appears.	Lack of tightening will be indicated with a “sensor too lose” message. Tighten the turnbuckle until the green message of OK! appears.
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Note
PRECAUTION - The patient position or movement and the BcSs-PICNIW-1000/BcSs-PICNIW-2000 sensors are known to affect the signal being recorded. As a result, if multiple recording sessions are obtained on the same patient, consistent positioning of the patient and device will lead to more comparable recordings.

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After sensor placement and tightening an assisted waveform quality window will appear via sample processing according to the table below.