User's Manual

Radius-7 Safety Information, Warnings and Cautions
www.masimo.com 15 Masimo
CAUTION: Do not place the Radius-7 on electrical equipment that may affect the device,
preventing it from working properly.
CAUTION: Failure to charge Radius-7 promptly after a Low Battery alarm may result in the
device shutting down.
CAUTION: If using Radius-7 during full body irradiation, keep the sensor out of the radiation
field. If the sensor is exposed to the radiation, the reading might be inaccurate or the device
might read zero for the duration of the active irradiation period.
CAUTION: When patients are undergoing photodynamic therapy they may be sensitive to
light sources. Pulse oximetry may be used only under careful clinical supervision for short
time periods to minimize interference with photodynamic therapy.
CAUTION: High ambient light sources such as surgical lights (especially those with a xenon
light source), bilirubin lamps, fluorescent lights, infrared heating lamps, and direct sunlight
can interfere with the performance of the sensor.
CAUTION: To prevent interference from ambient light, ensure that the sensor is properly
applied, and cover the sensor site with opaque material, if required. Failure to take this
precaution in high ambient light conditions may result in inaccurate measurements.
CAUTION: If the Low Perfusion message is frequently displayed, find a better perfused
monitoring site. In the interim, assess the patient and, if indicated, verify oxygenation status
through other means.
CAUTION: To minimize radio interference, other electrical equipment that emits radio
frequency transmissions should not be in close proximity to Radius-7.
CAUTION: In order to maintain Bluetooth connectivity with Root, ensure that the Radius-7 is
within approximately 7 m radius and line of sight of Root.
CAUTION: When using multiple Radius-7 and Root systems, re-dock the Battery Module to
Root to ensure proper pairing before connecting the Radius-7 to the patient.
CAUTION: To ensure that alarm limits are appropriate for the patient being monitored, check
the limits each time Radius-7 is used.
CAUTION: If the Radius-7 and Root become unable to communicate, parameters and
measurements will not show on the Root; however, this will not affect Radius-7's ability to
monitor the patient.
Note: Before securing Radius-7 onto the patient, make sure the Battery Module is sufficiently
charged.
Note: Always charge Radius-7 when it is not in use to ensure that the Radius-7 Battery
Module remains fully charged.
Note: All batteries lose capacity with age, thus the amount of run time at Low Battery will
vary depending upon the age of the Battery Module.
Note: The Radius-7 display enters standby mode after 30s of inactivity. The Radius-7 display
entering standby mode does not affect the monitoring of the patient.
Note: A functional tester cannot be used to assess the accuracy of Radius-7.
Note: When monitoring acoustic respiration, Masimo recommends minimally monitoring
both oxygenation (SpO2) and respiration (RRa).
Note: When using Radius-7 in the Maximum Sensitivity setting, performance of the "Sensor
Off" detection may be compromised. If the sensor becomes dislodged from the patient in this