Bravo pH Monitoring System 19 User Guide
chapter.fm 3/21/16 4:05 pm
5.5 x 7.75 inches (140 mm x 197 mm)
Performing a Bravo pH Study
The actions of performing the study (testing the vacuum, placing the capsule, and
instructing the patient) should be performed in one continuous sequence as follows.
Setting up the Vacuum
1. Make sure that the vacuum flow knob is turned to maximum.
2. Connect the vacuum hose (supplied with the vacuum pump) to the vacuum port on
the delivery device handle (Figure 8a).
Figure 8. Verify the vacuum function.
3. With your gloved finger covering the suction chamber (Figure 8b), verify that the
vacuum gauge reading is at least 550 mmHg. Make a note of the gauge reading.
4. Remove your finger from the suction chamber. Verify that the vacuum gauge
reading drops (Figure 8c) by at least 50 mmHg (500 mmHg or lower).
Note
At higher altitudes, the pressure
readings may be lower. For
different altitudes, use this table
for the minimum recommended
vacuum pressure. Contact
customer support for additional
information.
Altitude
Minimum
Pressure
mmHg
feet meters
0 0 550
2000 610 530
4000 1220 510
6000 1830 490
Place finger over
suction chamber.
Remove finger.Connect vacuum
hose.
a b c
vacuum
hose
vacuum port