A nurse assessing the results of a Rinne test sees the notation of BC > AC. How should the nurse translate this result?
Normal hearing
Cochlear defect
Conductive hearing loss
Sensorineural hearing loss
The Correct Answer is C
a) Normal hearing: In normal hearing, air conduction (AC) should be greater than bone conduction (BC), meaning BC > AC is not a normal finding.
b) Cochlear defect: A cochlear defect would result in sensorineural hearing loss, which would show a normal Rinne test (AC > BC).
c) Conductive hearing loss: BC > AC indicates conductive hearing loss, where sound transmission through the external or middle ear is impaired, allowing bone conduction to be heard more clearly than air conduction.
d) Sensorineural hearing loss: Sensorineural hearing loss typically shows a normal or positive Rinne test (AC > BC), as the issue lies with the inner ear or auditory nerve, not the conduction of sound.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a) Pilocarpine (Ocusert Pilo-20, Ocusert Pilo-40): Pilocarpine is a cholinergic agent used to treat glaucoma, and its use is generally safe for this condition.
b) Atropine sulfate (Isopto Atropine): Atropine is an anticholinergic medication that can increase intraocular pressure, which is contraindicated in glaucoma.
c) Betaxolol (Betoptic): Betaxolol is a beta-blocker that is commonly prescribed to treat glaucoma by decreasing intraocular pressure.
d) Pilocarpine hydrochloride (Isopto Carpine): Pilocarpine is also used to reduce intraocular pressure in glaucoma patients.
Correct Answer is D
Explanation
a) Assess the 6 cardinal gazes: This test assesses cranial nerve III, IV, and VI (oculomotor, trochlear, and abducens), which control eye movement, not the optic nerve.
b) Ask the client to clench teeth: This tests cranial nerve V (trigeminal nerve), which controls sensation in the face and motor functions like chewing.
c) Anticipate the use of a tonometer: A tonometer measures intraocular pressure (IOP), which is related to glaucoma, but it does not specifically assess cranial nerve II.
d) Use a Snellen chart: The Snellen chart is used to test visual acuity, which evaluates the function of cranial nerve II (optic nerve).
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