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Visual and Auditory SystemsMedical-Surgical Nursing-7th edition

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Page 13
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The tympanum is normally taut and is called ________.
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Pars tensa
The area of the tympanum that is above the short process of the malleus is called the ________.
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Pars flaccida
Scaling or lesions on the external ear could indicate what conditions?
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Seborrheic dermatitis, squamous cell carcinoma or atrophic dermatitis
A bony growth extending into the ear canal causing narrowing of the canal (and usually no pain or discomfort) is called ________.
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Exostosis
What conditions could cause a retracted eardrum?
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A vacuum in the middle ear, blockage of the eustachian tube or negative pressure of the inner ear.
When inspecting a patient's tympanic membrane, you have difficulty locating any landmarks and the tympanic membrane is very red. You suspect that this patient has...
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A bulging ear drum due to acute otitis media
Disproportionate loudness of sound from the malfunction of the inner ear is called...
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Recruitment
During the whispered test for hearing, how far away should you stand from the client?
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12-24 inches.
What are tuning fork tests used for?
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To differentiate between conductive and sensorineural hearing losses
For the ______ test, strike the tuning fork and hold the base of it against the mastoid process and ask the patient to tell you when it is no longer heard. Immediately move it (still vibrating) to the external ear canal and ask whether the patient can hear the sound.
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Rinne
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The ______ test involves striking a tuning fork to activate it and then placing it in the center of a patient's forehead, the top of the head or the teeth. You then ask where the sound is best heard.
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Weber
What is a normal finding for a Weber test?
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Sound is heard equally in both ears
What is the normal finding for a Rinne test?
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Sound is heard longer near the ear canal (air conduction) than it is when on the mastoid process (bone conduction).
What does a positive Rinne test indicate?
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If the Rinne test is used to differentiate between conductive or sensorineural hearing loss, it means that the loss is sensorineural. If it's just a screening test, it means the hearing is normal.
What does a negative Rinne test indicate?
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A conductive hearing loss
You're conducting the Weber test on a patient that has conductive hearing loss in the right ear. Which ear would you expect them to hear the sound loudest?
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The right ear
You're conducting the Weber test on a patient that has sensorineural hearing loss in the right ear. Which ear would you expect them to hear the sound loudest?
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The left
________ is the hearing test where sounds are presented through earphones in a soundproof room and the patient signals when a sound is heard.
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Audiometry
The frequency of a tone (used for a hearing test) is measured in _______. The intensity of a tone is measured in _________.
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Frequency is measured in Hertz (Hz), and intensity is measured in decibels (dB)
The minimum auditory sound heard is referred to as the ________.
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Threshold
Normal speech is approximately _____ decibels, and a whisper is normally _____ decibels.
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Normal speech= 40-65 dB and whispers = 20 dB
  
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