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Abilene Christian University *
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287
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Aerospace Engineering
Date
Feb 20, 2024
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docx
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Week 3 Case 1:
1.
What is the three-frequency PTA for the right and left ear? Right ear: The average thresholds at 500 Hz, 1000 Hz, and 2000 Hz is (25 + 65 + 75)/3 = 55 dB HL.
Left hear: The average thresholds at 5000 Hz, 1000 Hz, and 2000 Hz is (45 + 80 + 75)/3 = 66.7 dB HL.
2.
What do you think (m) means in the table above? The (m) stands for monaural, meaning the speech testing was conducted with monaural (one ear) presentation.
3.
Identify the type and degree of loss in each ear. Are these results
consistent with what would be expected based on the patient report and the
physician’s observations? The right ear has a conductive hearing loss and the degree is mild to moderate. The left ear is a mixed hearing loss and the degree is moderate. These results are consistent with the patient’s report of how her left ear hurts and that her hearing is “bad” in that ear. Also, the doctor’s observation of fluid behind the
eardrum
.
4.
Based on the SPRINT chart, is this patient’s WRS what would be expected
for the patient’s hearing loss? Explain your answer. How would you classify
their general word-recognition ability based on the ranges given in Chapter
4? For the right ear, the WRS is 80% at the patient’s hearing level, which is expected because of the degree of hearing loss in that ear. For the left ear, the WRS is 80% at the patient’s hearing level, which is also expected because of the hearing loss in that ear. An audiologist would classify the patient’s general word-recognition ability as “good” based on the ranges. 5.
Based on the patient’s reports, the physician’s observations, and the
audiometric findings, what type of tympanogram results would you expect in
each ear? Explain why you think those results would be most likely. The type of tympanogram an audiologist would most likely see in the left ear is type As or Ad. This is because there was presence of fluid beneath the tympanic membrane. Also, when there is fluid in the middle ear, it causes the tympanic membrane to have less mobility, and the curve would be shallow. For the right ear, the audiologist would label it as a type B tympanogram because of the physicians observation of fluid behind the eardrum which indicates a possible middle ear infection or fluid accumulation, that can result in a flat tympanogram. Week 3 Case 2
1.
Describe the type and severity of the loss. The right ear has mild sensorineural hearing loss because the SRT is 25 dB, which indicates that the patient can hardly hear speech a low intensities. The left ear has a more severe sensorineural hearing loss because the SRT is 60 dB, meaning that the patient requires a significantly louder speech signal to understand speech. 2.
Given the loss type, what area(s) of the ear may be damaged? Since it is a sensorineural hearing loss, there may be damage to the inner ear (cochlea) or the auditory nerve pathways. 3.
What is the three-frequency PTA for the right and left ear? This information is not provided, and therefore cannot be calculated.
4.
Based on the SPRINT chart, is this patient’s WRS what would be expected for
the patient’s hearing loss in each ear? Explain your answer. Yes, in the right ear, the WRS is 84% which indicates good speech discrimination considering the mild hearing loss. In the left ear, the WRS is 40%, which indicates that the patient has a harder time discriminating speech relative to the severity of hearing loss. Therefore, their scores in each ear are expected with their hearing losses in each ear.
5.
Based on the audiometric findings, what type of tympanogram results would you
expect in each ear? Explain why you think those results would be most likely. In the right ear, the middle ear function is unlikely to be affected significantly which indicates a type A tympanogram. In the left ear, a Type As or Ad would be expected because there was a mention of slight fullness in this ear.
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