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Welch Allyn 420 Series - Blood Pressure Warnings; SpO2 Warnings

Welch Allyn 420 Series
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4 Welch Allyn
There are no user-serviceable parts inside the device other than battery replacement. Refer
to unit to the Authorized Service Center listed on page 52.
The Spot Vital Signs should not be used on patients who are linked to heart/lung machines.
The Spot Vital Signs does not operate effectively on patients who are experiencing convul-
sions or tremors.
This device complies with current required standards for electromagnetic interference, and
should not present problems to other equipment or be affected by other devices. As a pre-
caution, avoid using this device in close proximity to other equipment.
This device is not intended for hand-held use during operation.
Welch Allyn recommends that the battery is left in the device, regardless if the device is not
used for long periods of time since there is no hazard of leaving the battery in the device.
Connection of accessories not approved by Welch Allyn with the Spot Vital Signs can affect
patient and/or operator safety.
Do not autoclave.
Welch Allyn is NOT responsible for the integrity of any Wall or IV pole mounting interface.
Welch Allyn recommends that the customer contact their Biomedical Engineering depart-
ment or maintenance service to ensure professional installation, safety, and reliability of any
mounting accessory.
Blood Pressure Warnings
To ensure pediatric blood pressure accuracy and safety, note that the Welch Allyn Small Cuff
(5200-03), the Welch Allyn Small Child One-Piece Cuff (5200-13), or the Welch Allyn Small Child
Disposable One-Piece (5083-93-3) are the SMALLEST CUFFS approved for use with young
children and infants. The circumference of the childs arm must fit within the range markings on
the cuff.
You may experience inaccurate blood pressure measurements if cuffs and/or hoses other than
those provided for the Welch Allyn Spot Vital Signs by Welch Allyn are used.
Patients that are experiencing moderate to severe arrhythmias may give inaccurate blood
pressure measurements.
When several blood pressure measurements are taken on the same patient, it is recommended
that the cuff site and extremity are regularly checked for possible ischemia, purpura, and/or
neuropathy.
SpO
2
Warnings
The operation of the SpO
2
sensor in MRI environments is specifically not recommended.

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