Normal ear pressure, as measured by tympanometry, typically peaks between +50 and -200 daPa (decapascals).
Here's a breakdown:
- Normal Range: According to the reference material, a Type A tympanogram, which represents normal middle ear pressure, shows a peak between +50 to -200 daPa.
In addition to pressure, normal ear function also requires normal compliance/admittance, which typically falls between 0.3 to 1.5 cc. The combination of normal pressure and admittance is what indicates healthy middle ear function.
