UNDERSTANDING BREATHS PER MINUTE
1. The Breaths Per Minute displayed is the exact Breaths Per Minute only when the
Assist is in the OFF setting. If the Assist is ON, the displayed value is the minimum
Breaths Per Minute, i.e. the ADS will initiate a breath only if the patient does not do so
in the allotted time. The ADS 2000 correctly updates and displays the Minute Volume
per Kilogram after each breath, whether the patient or the machine initiated the breath.
Example 1 If the Assist is OFF and the Breaths Per Minute is set at 6.0, then the
patient (TEST LUNG) will only have six inspiratory / expiratory cycles each minute.
Example 2 If in the above case, the Assist was in the -2.0 setting and the Breaths
Per Minute remained at 6.0, and the patient gave a single inspiratory effort of -2.0 cm.
of H
2
O, then the patient will have seven inspiratory / expiratory cycles for that minute.
HOW TO SET P.I.P.
1. To adjust the Peak Inspiratory Pressure, simply depress either the P.I.P.
UP or P.I.P. DOWN buttons on the front of the ADS 2000.
NOTE: To see how the P.I.P. setting works using the Test Lung, press the P.I.P.
DOWN button until it displays 5.0, place the SET / RUN switch to "RUN". The Test
Lung will begin to fill up to 5.0 cm. H
2
O shown on the display. Notice that the Test Lung
does not inflate as much as it did when the P.I.P. was set at 15 cm. H2O.
UNDERSTANDING ASSIST
1. The default setting for Assist, (assisted respiration) is set at -3.0 cm. of H
2
O. This
setting allows for a breath to be initiated by the patient. If you wish to allow the patient to
initiate its own breath, use the Assist buttons (far right on the display) to set the amount
of NEGATIVE PRESSURE, (vacuum) the patient has to produce in order to initiate a
breath.
2. You would usually select the lowest possible number that does not cause false
breaths. When in Assist MODE the ADS 2000 will wait for the patient to initiate a
breath. If the patient does not SPONTANEOUSLY INITIATE a breath, the ADS 2000
will automatically begin the breathing cycle for the patient at the set parameters.
3. If you prefer not to allow the patient to initiate it's own breath, you may do so by
pressing the ASSIST DOWN button until the display reads "OFF".
This is not recommended.
18 Engler Engineering Corporation ADS 2000
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