Q.
The pulse seems so short. Am I really getting enough oxygen?
A.
Yes. PulseDose delivers a precise burst of oxygen at a relatively high flow rate at the leading edge of
each inhalation. This assures that the oxygen delivered flows deep into the lungs for maximum benefit.
PulseDose requires less oxygen to deliver the same therapeutic benefit as continuous flow oxygen
delivery.
Q.
I can't hear the pulse. Is PulseDose working?
A.
If the pulse can't be heard, simply look at the green PulseDose indicator to see that the device is being
triggered by inhalation. For further assurance, hold the end of the cannula in front of your lips while
inhaling through your mouth and feel the pulse. PulseDose does not monitor the supply of oxygen.
Remember to check the oxygen contents gauge periodically to verify that there is an adequate oxygen
supply. If the oxygen supply runs out, the green PulseDose indicator light will continue to illuminate,
indicating that the conserving device is being triggered by inhalation.
Q. Why can't I use a cannula which is longer than 35 feet?
A. The PulseDose triggering is not significantly affected by the cannula length, but the delivery of oxygen is
affected. If the cannula is longer than 35 feet, the pulse of oxygen is delayed. Remember the therapeutic
moment during the inhalation cycle. If the oxygen is not delivered during this time, the benefits will not be
realized.
Q. I've always used humidifiers with oxygen. Should I use a humidifier with PulseDose?
A. No. PulseDose is not able to sense inhalation through the water in the humidifier. Also, many patients find
that humidification is not necessary with PulseDose. They find that PulseDose improves comfort because
it delivers a very small amount of oxygen during the early part of inhalation, while the rest of the inhalation
is composed of normal room air.
Q. When I'm breathing faster, I don't get a pulse with each breath. Don't I need a dose every time?
A. Because PulseDose breathes with the patient, it has an upper limit (40 Breaths Per Minute) that keeps
you from getting too much oxygen. When breathing slowly, you receive a dose with every breath. As
breath rate increases (up to 40 BPM) PulseDose still delivers a dose with every breath. At this point, you
are getting more oxygen per minute because each pulse delivers the same amount of oxygen with each
breath while the number of breaths has increased. With continuous flow oxygen, the oxygen delivered is
constant. As you breathe faster, the enrichment of inhalations actually decreases because each breath is
being diluted with a greater amount of room air.
Q. Why is my conserving device beeping every three seconds?
A. The PulseDose conserving device will beep if breathing is not sensed while the device is on. This could
be affected by the cannula position or mouth breathing/shallow breathing.
CARE & MAINTENANCE
The DeVilbiss PulseDose compact conserving device should be kept clean and free from moisture and dust.
The device should be protected from extreme temperatures. Clean the device periodically by wiping it with a
dry, lint-free cloth. Do not clean the unit with a solvent based cleaning solution. Avoid dropping the conserving
device or placing it in a position where it could topple or fall since this can damage the device. Whenever
possible, use a padded carrying bag such as the Hideaway or Walkabout bags to carry the conserving device
and cylinder. This will help to protect the conserving device in case of a fall. Avoid getting fluids or debris such
as sand or dirt inside the device.
CAUTION– To prevent product damage, do not expose the PulseDose conserving device to water.
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