User's Manual

Radical-7 Appendix: Best Practices for Comparisons to Reference Measurements
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 For pediatric subjects that have limited neck space, the sensor may be placed on the
right side of chest, underneath clavicle. The sensor should not be touching the clavicle.
 Place sensor tape on skin. Gently press on sensor tape from center outward so adhesive
forms a good contact with patient's skin. Ensure there are no skin folds or air gaps under
sensor pad.
 Remove the release liner from the anchor pad and place the anchor pad on patient’s side
of the neck; route the sensor cable in front of patient. Do not place anchor pad on clothing.
Pulse-Oximeter Sensor Placement
 Place finger sensor on middle or ring finger of hand opposite the blood pressure cuff.
 For reusable sensors, make sure the fingertip just touches the rubber stopper at the end
of the sensor without going over it.
 Ensure sensor is right side up with the cable running in line with finger, not at an angle
on dorsal (back side) of hand.
Monitoring
 Ensure RRa device is turned on and connected to computer with automatic data capture.
 Connect sensor to cable.
 If RRa values are not displayed after 2 minutes or if the RRa value has dropped out,
check the following:
• Confirm appropriate sensor placement, orientation and site selections.
• Confirm that optical pulse-oximeter sensor is placed properly on the
patient's finger.
• Confirm that all cables are plugged in at each of the various connection
points and hubs.
• Auscultate with stethoscope to listen for air sounds on the side opposite
sensor. If breath sounds are present, remove sensor and replace with new
sensor on opposite side of neck.
• Change the sensor out if RRa value continues to not display.
• Verify that there is not excessive hair or a gap between the sensor and the
neck and that it is placed.
 Simultaneously record the RRa and respiratory rates and from other methods. If
comparing RRa to capnography respiration rate, a mask is recommended. Sidestream
methods with a nasal cannula are not recommended because of dilution effect in the
supplemental flow of gasses, inability to measure both nasal and oral airflow, and nasal
cannula mispositioning. When recording values, confirm that there are no SIQ messages
displayed on the device.
 Suggested directions to record manual respiration rate are as follows:
• Use stethoscope to listen for breath sounds, count each breath cycle as one
breathe, count for 60 seconds.
• Alternate method to stethoscope, count the number of chest
rises/inhalations during a 60 second period. Record manual respiration rate
to compare with RRa.