Typical Questions And Answers - DeVilbiss PulseDose PD1000 Guía De Instrucciones

• Always follow the Use and Care instructions supplied with the batteries being used. Batteries should be
removed when the device will not be used for a week or more.
• The PD1000 series is Latex free. Review the individual material lists for the tubing and cannula used in
conjunction with the DeVilbiss products.

TYPICAL QUESTIONS AND ANSWERS

Q. How does PulseDose work? How does it know when I'm inhaling?
A. When inhaling, your diaphragm moves down and causes a drop in pressure in the lungs. Air flows in
through the nose and mouth to equalize the pressure. This negative pressure is also present at the nose
and mouth during inhalation. This pressure signal travels through the nasal cannula to a pressure sensor
in the PulseDose conserving device. An electronic circuit then opens an electrical valve to deliver a
precisely metered dose of oxygen. When the valve is closed, the sensor is ready to detect the next
inhalation.
Q. The pulse seems so short. Am I really getting enough oxygen?
A. Yes. PulseDose delivers an internally controlled 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.
EN - 8 A-1000