A 62-year-old patient presents with difficulty hearing high-frequency sounds. The medical assistant is tasked with performing an audiometric exam. What is the primary purpose of using pure tone audiometry in this scenario?
To evaluate the structural integrity of the patient's middle ear components, including the tympanic membrane and ossicles
To measure the patient's hearing sensitivity for standardized pitches and determine the threshold for hearing across a range of frequencies
To determine the patient's ability to perceive changes in the loudness of sounds across different frequencies
To assess the patient's speech recognition threshold and ability to distinguish between speech sounds
Pure tone audiometry is the measurement of a patient's hearing sensitivity for standardized frequencies, which assists in determining the type and degree of hearing loss. By presenting tones at various frequencies and intensities, this testing can identify the threshold at which a patient can barely detect sound, thus enabling healthcare providers to diagnose hearing impairments such as the high-frequency loss this patient is experiencing. Other methods like speech audiometry or tympanometry also evaluate hearing but do not specifically test for frequency-based hearing loss as pure tone audiometry does.
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