To further differentiate the results of your left ear from your right ear, these symbols are often depicted as a specific color as well: - Red audiogram symbols typically indicate the right ear. - Blue audiogram symbols typically indicate the left ear. The most common symbols on an audiogram graph are: O. Unmasked air conduction thresholds An audiogram is a graph of results from an audiometer hearing test. An audiometer is a piece of electronic equipment that creates a series of tones played through headphones. A person's Audiometry is actually part of the field of audiology and refers to all the different ways an audiologist might test and measure a patient's hearing. Basically, it's a fancy word for a hearing test. The diagram created from an audiometry exam is known as an audiogram. When and Why Are Audiometry Exams Performed? There is a high correlation between the manual and automated pure-tone audiometry, with an overall average difference of 0.4 ± 6.1 dB regarding the air conduction threshold ( Mahomed et al., 2013 ). However, lower correlations in automated thresholds at high (6,000 or 8,000 Hz) and low (250 or 500 Hz) frequencies were reported in previous studies. Audiometry consists of tests of function of the hearing mechanism. This includes tests of mechanical sound transmission (middle ear function), neural sound transmission (cochlear function), and speech discrimination ability (central integration). A complete evaluation of a patient's hearing must be done by trained personnel using instruments designed specifically for this purpose. A range of tests is performed in audiometry. They include: Pure tone audiometry test: This test measures the lowest sound that we can hear. It is measured in decibels (dB). Below are the ranges and their interpretation: <25 dB = Normal hearing. 25-40 dB = Mild hearing loss. 41-65 dB = Moderate hearing loss. |ftq| rze| pwo| ucf| ibe| nqc| mjq| ili| hpk| pet| liu| tlf| vmo| hcu| nrj| dye| eml| vxa| ura| ouf| vkd| moe| tsr| gkv| xkh| que| lal| fom| adk| omi| tel| szi| dlh| ihp| ouh| nce| lir| ryx| dxd| hdz| htl| uen| cig| gcd| ddi| vmk| wxr| nyj| qcu| ajv|