Define Otoscope
The otoscope—also known as an auriscope—is an instrument used in the medical field to look into patient’s ears. Because much of the body’s functions can be dictated by the hearing and balance, which is examined with an otoscope, it is extremely important. There are many aspects that pertain to the otoscope, including its uses, function and operation.
-
Purpose
-
The otoscope is used to peer into the ear, providing a view of the external auditory canal. This canal is the tunnel that starts from the outer ear and extends to the eardrum. By examining the middle ear, many problems and concerns can be detected.
Parts
-
The parts that make up the otoscope include three main pieces. The handle is the part that contains the batteries, which power the light. The head of the otoscope contains the magnifying lens that allows the medical professional to peer inside the ear as well as the bulb, which lights up the ear canal. The cone is the detachable part that actually comes into contact with the ear.
-
Holding
-
Operation of the otoscope is relatively simple, but still comes with many procedures. When holding the otoscope, the user should hold it on the end that is closer to the eyepiece, which prevents the otoscope from moving much while in use. Holding it at the opposite end can increase movement, which can cause discomfort in patients.
Air Pressure
-
The majority of otoscopes also have a very small air vent built in, which allows the examiner to send a puff of air into the ear drum. This allows the examiner to observe the eardrum movement, which assesses mobility. The difference in the movement of the eardrum depends upon the pressure within the middle ear; if the pressure is not normal, it can be a warning sign that something is wrong.
Prior to Use
-
When operating an otoscope, there are a few operational procedures that should be checked prior to its use. Because the illumination is key to its performance—as a dim light can produce altered images—ensuring that the batteries are fully charged is essential.
When using an otoscope it is important to use the biggest earpiece size possible. The larger the earpiece used, the more of a visual image you will be able to get from the ear canal.
-
References
- Photo Credit little girl with an otoscope image by Lisa Eastman from Fotolia.com
