Distortion Product Otoacoustic Emissions (Dpoae) Screening - natus Otometrics Bio-logic AuDX PRO FLEX Quick Start Manual

Quick Guide:
Bio-logic AuDX PRO FLEX
®
Non Perforated Eardrum: This
test records three tympanograms,
with the patient performing the
Toynbee and then Valsalva's
maneuver between the tests. This
changes the middle ear pressure,
causing the tympanogram peaks
to shift between the recordings.

Distortion Product Otoacoustic Emissions (DPOAE) screening

Connect the probe to the red connector or use the tympanometry probe and select the DPOAE Quick button
from the start menu.
5
Quick start
®
Perforated Eardrum: This test
pressurizes the ear canal (and
middle ear when the eardrum is
perforated). To test the Eustachian
tube function, the patient should
be instructed to swallow multiple
times during the test. If the
Eustachian tube opens, pressure
will drop.
Special care must be taken to
ensure an airtight fit of the probe
during testing, to make sure the
observed pressure drop is through
the Eustachian tube and not
caused by leakage.
Patulous Eustachian Tube:
This test is performed without
stimulus. If the Eustachian tube is
permanently open, the resulting
higher fluctuation of admittance
may mean that the rhythms of
heartbeat or breathing can be
identified in the admittance curve.
An airtight fit of the probe during
testing is essential.
Otometrics - Next generation Bio-logic products
Bio-logic
®