What are the normal pressure values for the tympanic membrane measured in daPa?

The normal pressure values for the tympanic membrane, measured in daPa (decaPascals), typically range from -150 to +25 daPa. This range reflects the pressure conditions within the middle ear that are considered healthy and functional for proper auditory function.

The tympanic membrane, or eardrum, operates best when the air pressure on either side is balanced. Pressures below -150 daPa can indicate negative middle ear pressure, which may lead to issues such as eustachian tube dysfunction or middle ear infections. Conversely, values above +25 daPa can suggest issues such as overpressurization or a potential obstruction.

Understanding these normal pressure values is essential for hearing professionals in diagnosing and managing ear-related conditions effectively.