Welch Allyn MicroTymp Operating Instructions Manual page 28

With printer/charger
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PRESSURE - dvF'&
High Static Admittance
High Static Admittance (high
peak height) indicates possibility
of:
Tympanic membrane
l
abnormalities
Ossicular disruption
l
NOTE: "HIGH Ya" will print out
in place of gradient (GR) value
when admittance exceeds
1.5 mmho (see OVER, pg. 11).
Volume (+ 200 Vea) Too Large
Excessively large volume in
presence of flat tympanogram
indicates possibility of:
Perforated tympanic membrane
l
Patent tympanostomy tube
l
NOTE: If volume exceeds 2cc, a
LEAK ( = F ) symbol will appear;
above 2.5cc, an OPEN (=I )
symbol will appear.
Negative Tympanometric Peak
Pressure
Negative TPP indicates
eustachian tube dysfunction as
a result of:
l
Media
Cold
l
l
Allergy
l
l
27
Coughing
Sniffing

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