Nonin LS1 Operator's Manual page 10

Indications for Use
Cautions (Continued)
!
This device is designed to determine the percentage of arterial oxygen saturation of functional hemoglobin. Factors that may
degrade pulse oximeter performance or affect the accuracy of the measurement include the following:
- excessive ambient light
- excessive motion
- blood flow restrictors (arterial
catheters, blood pressure cuffs,
infusion lines, etc.)
- moisture in the sensor
- improperly applied sensor
The patient's nasal passage may dry out if continuous monitoring is required. Check patient hourly for nasal comfort.
When using sample lines that also deliver oxygen to the patient, it is important to be aware that the EtCO
when used in combination with supplemental oxygen. To obtain a true EtCO
oxygen be disconnected for a few seconds to establish a baseline.
If the EtCO value is out of normal range (4.4 – 5.7 Vol%/kPa or 33 – 43 mmHg) an internal air leak is possible (see
2
Troubleshooting). Replace the single-use, disposable moisture trap and perform the calibration procedure. If the problem
persists, contact Nonin Technical Service.
In order to prevent damage to the equipment, always charge the battery to full capacity before storing the monitor.
Avoid rapid temperature change or extreme temperatures. This can cause malfunction.
Never store or transport the monitor where condensation can occur. If condensation does occur, wait until all condensation has
evaporated before using the monitor.
The temperature of the monitor may exceed 41 °C, but will not exceed 49 °C when operating at high ambient temperatures
(40 °C). Limit skin contact to less than 1 minute and inspect the contact area often. Patient sensitivity may vary due to medical
status or skin condition.
Do not attempt to replace the battery inside the monitor. The battery is not field replaceable and cannot be replaced by the
operator. Use only Nonin-specified components. Use of another battery may present a risk of fire or explosion. Contact Nonin
Technical Service when the battery needs replacing. Battery replacement by inadequately trained personnel could result in a
hazardous situation.
Do not charge Li-Ion batteries at a temperature of 0 °C (32 °F) or less as this may result in significantly reduced battery life.
Do not use the power supply if the integrity of the AC cord conductors or the outlet is in doubt.
This device is a precision electronic instrument and must be repaired by Nonin Technical Service. Field repair of the device is
not possible. Do not attempt to open the case or repair the electronics. Opening the case may damage the device and void the
warranty.
In compliance with the European Directive on Waste Electrical and Electronic Equipment (WEEE) 2002/96/EC, do not dispose
of this product as unsorted municipal waste. This device contains WEEE materials; please contact your distributor regarding
take back or recycling of the device. If you are unsure how to reach your distributor, please call Nonin for your distributor's
contact information.
When using the monitor in the home, avoid exposing the monitor to lint and dust.
When using the monitor around small children and pets, avoid leaving the monitor unattended. Cables and cannulas pose a
risk of injury, including strangulation. Small items (e.g., filter) are choking hazards.
Be careful not to drop the monitor on the floor or strike it against hard surfaces. If such an incident happens, do not use the
monitor until a functional test has been performed.
The monitor is equipped with automatic barometric pressure compensation. End tidal pCO
based on an atmospheric pressure of 760 mmHg and pH
This monitor is equipped with isolation and protects the patient against burns when used with high-frequency surgical
equipment.
Water or other liquid in the sample line may cause erroneous EtCO
Ensure that all connections are tight, leak-free, and properly attached.
- incorrect sensor type
- inadequate signal
- venous pulsations
- anemia or low hemoglobin
concentrations
- cardiogreen and other
intravascular dyes
O of 47 mmHg (example: 760 – 47 = 713, 713 x 5% = 36 mmHg).
2
readings or an occlusion.
2
- carboxyhemoglobin
- methemoglobin
- dysfunctional hemoglobin
- artificial nails or fingernail polish
- residue (e.g., dried blood, dirt,
grease, oil) in the light path
2
reading, it is recommended that the supplemental
2
values displayed are calculated
2
value may be diluted
3