Welch Allyn MicroTymp 3 portable tympanometric instrument - User Manual - Manual (Page 19)

Directions for use Completing a test 19
Once a seal is achieved, the TEST message appears on the LCD, followed by the volume
indication on the +200 Vea scale.
For 226 Hz, data points are displayed from right to left across the LCD as the test
progresses. The test is complete when the last data point is displayed. The image below
on the left illustrates the execution of a complete test. If patient or instrument movement
causes a leak beyond -100 daPa in 226-Hz mode, the test will be stopped but the data will
be saved. See the figure on the right below.
For 1000 Hz, the test is complete when one of two “Quick-Interpretation” messages
appears--either PASS or REFER--as shown in the examples below. If patient or instrument
movement causes a leak beyond -300 daPa in 1000-Hz mode, the test will be stopped but
the data will be saved.
Note Because of changes in air pressure during a test, the subject will feel slight
pressure in the ear canal. During the brief seconds when tympanometric
measurements are made, it is important that the clinician's hand is steady, and
that the subject does not talk, yawn, chew gum, cry, or move the head.
Note If the BLOCK, LEAK, or OPEN messages appear during the test, reposition the tip
to restart the test.
R L TEST
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
R L TEST
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
R L TEST
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
R L TEST
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
Note A RETEST message may also appear, indicating that you should rerun the test.