Welch Allyn OAE Hearing Screener - User Manual - Manual (Page 33)

Select the test protocol
The OAE screener provides two (2) protocol options: DP 4s—testing at a maximum time
of 4 seconds per frequency and DP 2s—testing at a maximum time of 2 seconds per
frequency. The last protocol that was used is shown on the Main menu.
1. Press the LEFT or RIGHT control panel button on the Main menu.
The Change Protocol menu appears.
2. Press the LEFT or RIGHT contorl panel button to select the desired protocol.
3. Press the UP control panel button repeatedly to return to the Main menu and begin
testing.
4. Press the Down control panel button to access the device menus.
See “Appendix E: Configurations and test protocols” for further information on protocol
settings.
Prepare the patient for testing
Otoscopic examination of the patient’s ear canals is recommended prior to testing.
Excessive cerumen or vernix in the ear canals may interfere with the test and give invalid
or incomplete results. Patients with excessive cerumen, vernix, debris, or foreign bodies
in the ear canals should be referred to a physician or other qualified health care
professional for removal of the blockage prior to testing.
1. Place the patient in a position that will allow easy access to the ear canal.
2. Instruct the patient to remain quiet and still during the test.
Start a test
1. See "Access menus" for how to access menus.
2. Gently pull up and back on the outer ear during eartip insertion to straighten the ear
canal and ensure proper placement and seal.
3. Gently insert the eartip into the ear canal. It should fit snuggly and comfortably.
Note The best test results are obtained when an eartip is inserted
into the ear canal instead of flush with the ear canal.
4. Press either the LEFT or RIGHT control panel button for the TEST menu to select
which ear is tested.
After the ear to be tested is selected, the AutoStart Probe Check begins
automatically.
5. Repeat steps 1–3 to test the opposite ear.
AutoStart probe check
The Probe Check display shows a cone, larger at the left and tapering toward the right,
representing the ear canal volume—from left to right—from very large (blue area) to very
small (orange area).
Where the vertical white bar appears indicates the measured ear canal volume:
Directions for use Operating instructions 29