Introduction; About Lifesense; About Capnometry; About Pulse Oximetry - Nonin LifeSense LS1-9R Operator's Manual

Introduction

About LifeSense

LifeSense allows healthcare professionals to non-invasively monitor pulse oximetry and
capnometry on either intubated or spontaneously breathing patients. This very useful
combination serves as a reliable indication of the patient's respiratory and ventilation status.
When measuring EtCO
airway adapter for an endotracheal tube, a nasal cannula, or a nasal cannula with supplemental
oxygen delivery. A variety of sample lines can be used and connected to a specially designed
moisture trap, which is easily snapped into the slot on the left side of the monitor. The sampling
lines or cannulas can be used with or without Nafion
by a Nonin-branded PureLight
accessories and replacement parts recommended by Nonin. Refer to the "Accessories" section
for more information.
LifeSense has visual and audible alarms when limit readings are outside the predefined limits.
Limits can easily be adjusted using the touch panel display. The operator can pause or resume
the alarm by pressing the Audible Alarm Pause/Resume button.
LifeSense has a touch panel display where settings and adjustments are made. The touch panel
display also shows battery status and fault messages. The only buttons on the monitor, ON/OFF
and Audible Alarm Pause/Resume, are located on the upper right corner of the front panel. Next
to these buttons there is a small indicator that turns green when the monitor is connected to a
power outlet. LifeSense operates on battery power for approximately 8 hours.

About Capnometry

The monitor uses sidestream non-dispersive infrared (NDIR) spectroscopy to continuously
measure the amount of carbon dioxide (CO
at the end of exhalation (EtCO
a reliable method for detecting esophageal intubation, hypoventilation, and disengagement of
the endotracheal tube during mechanical ventilation.
CAUTION: When using sample lines that also deliver oxygen to the patient, it is
!
important to be aware that the EtCO
with supplemental oxygen. To obtain a true EtCO
the supplemental oxygen be disconnected for a few seconds.

About Pulse Oximetry

Pulse oximetry is a non-invasive method that passes red and infrared light through perfused
tissue and detects the fluctuating signals caused by arterial pulses. Well-oxygenated blood is
bright red, while poorly oxygenated blood is dark red. The pulse oximeter determines functional
oxygen saturation of arterial hemoglobin (SpO
of absorbed red and infrared light as the volume fluctuates with each pulse.
6
, the patient is attached to the monitor by a sample line that can be an
2
®
finger clip sensor, provided with the system. Use only those
) during every breath, the amount of CO
2
), and respiratory rate (RR). Capnometry has been proven to be
2
2
®
tubing. Pulse rate and SpO
value will be diluted when used in combination
reading, it is recommended that
2
) from this color difference by measuring the ratio
2
are measured
2
present
2