GSI AudioStar Pro™ Clinical Audiometer
70
D-0100778 Rev C
Chapter 6: Operation
Preliminary Checks
Before starting any procedures using the GSI AudioStar Pro Clinical
Audiometer, ensure that the power cord is plugged into a properly grounded
receptacle.
WARNING!
Check also that all cords from the transducers, patient response
hand switch (if used), and printer fit securely in their connectors on the rear and
side panels.
Inspect all cords for fraying and damage. If there is any damage to any cord, do
not use the AudioStar Pro. If speech testing with recorded voice from an external
source is to be performed, check that the CD or digital music player device is
connected and operating properly.
1.
Turn on the instrument and allow it to come to operating temperature
(approximately 10 minutes).
2.
Check that the transducers and other system components are operating
properly.
3.
Seat the patient comfortably in the test area.
4.
Place the selected transducers on the patient.
CAUTION!
Handle earphones, bone vibrator, and insert earphones with care.
Do not drop them nor allow them to be banged together. Severe mechanical
shock can alter their operating characteristics or change the output levels, which
may require that the transducers be replaced.
CAUTION!
It is recommended that all parts that come into direct contact with
the patient (e.g. earphone cushions) are subjected to standard disinfecting
procedures between patients. This includes physically cleaning and using a
recognized disinfectant. Individual manufacturer’s instructions should be
followed for use of any disinfecting agent to provide an appropriate level of
sterilization.
Placement of the Earphones
Prior to positioning the earphones on the patient’s head, inspect the ear canals for
any blockage due to cerumen or foreign objects. Recognize that soft-walled ear
canals may collapse under the earphones and this may lead to incorrect threshold
levels. Insert phones might be used in these cases. Eliminate all obstructions,
such as glasses, hair, or hearing aid, between the earphone and the patient.
Center the earphone over both ears and adjust the headband so that it rests solidly
on the crown of the head and exerts pressure on both ears. Place the earphone
with the red connector over the patient’s right ear and the earphone with the blue
connector over the left ear.
Placement of the Insert Phone
WARNING!
Push the correctly sized eartip onto the earphone and then place the
insert phone securely into the patient’s ear. Be sure there is an eartip attached to