D-11049-2, Ver 11
Page 9 of 26
AUDITORY BRAINSTEM RESPONSE (ABR)
C
LINICAL
U
SE
During ABR testing, your VivoLink
™
presents various auditory stimuli to your patient through air
or bone conduction such as a click or tone burst. It then records electrical responses using the
Amplitrode® or VivoAmp™ to be evaluated by the Integrity™ software. See Chapter 5 of the
User's Manual on the Computer desktop for details. For optimal results, patients should be
sleeping or quiet and relaxed, during testing.
S
ETUP
1.
You will need:
"Snap" electrodes
A81 Amplitrode®, A82 Amplitrode®, or A90 VivoAmp™
ER-3A-800/ER-3C-800 Insert Earphones, H-800/H-801 EP Headphones, or B71W Bone Conductor
PDI electrode Prep Pads
Cotton pads or gauze
2.
Connect your Insert Earphones, EP Headphones, or Bone Conductor and your Amplitrode® or VivoAmp™ to your VivoLink™.
3.
Attach the tubes on the Insert Earphones if they are not already attached.
4.
Select the appropriate size of ear tips for your patient.
5.
Attach the ear tips securely to the ends of the earphone tubes.
C
HOOSE A
T
RANSDUCER
ER-3A-800/ER-3C-800 Insert Earphones
Use when performing ABR testing using air conduction.
B71W Bone Conductor
Use when performing ABR bone-conduction testing.
To perform data collection, connect the B71W Bone Conductor to either the left or right mastoid or the forehead.
Secure the headband supplied with the B71W Bone Conductor. Ensure that the entire circular surface of the Bone Conductor is
in full contact with the skin. Only use the headband provided to maintain the proper sensitivity of the transducer.
H-800 Circumaural/H-801 Supra-aural EP Headphones
Use when performing ABR testing using air conduction.
Place the headphones over the ears and adjust the strap.
P
REPARE THE
P
ATIENT
Refer to the "Patient Preparation" section for:
Ear preparation and ear tip insertion
Skin preparation
Electrode application
E
LECTRODE
S
ITES FOR
ABR
High forehead
–
black
clip (+)
Low forehead
–
green
clip (ground)
For 1-channel Operation (A81)
Earlobe right
or
left
– white clip (–)
(You can also use mastoid left or mastoid right)
For 2-channel Operation (A82/A90)
Earlobe left
–
blue
clip (1)
Earlobe right
–
red
clip (2)
TIP
Place the high forehead electrodes as high as possible. When possible, use the earlobe sites rather than the mastoid sites.
Also, move hair away to improve connectivity.
High Forehead (+)
Earlobe (
1
)
Low Forehead (Ground)
Earlobe (
2
)
