When hearing is evaluated, which cranial nerve is being tested?
VII
X
I
II
The Correct Answer is A
A. Cranial nerve VII (facial nerve) is not primarily responsible for hearing; however, it does have some sensory function in the ear region. The primary cranial nerve responsible for hearing is cranial nerve VIII (vestibulocochlear), which is not listed among the options.
B. Cranial nerve X (vagus nerve) is primarily involved in autonomic functions and does not directly relate to hearing.
C. Cranial nerve I (olfactory nerve) is responsible for the sense of smell.
D. Cranial nerve II (optic nerve) is responsible for vision.
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Correct Answer is C
Explanation
A. This description relates more to a sensory discrimination test, not graphesthesia.
B. This option does not accurately describe the graphesthesia test, which involves identifying shapes or numbers rather than just touch location.
C. In the graphesthesia test, the client closes their eyes while the nurse uses a blunt object to write a number or shape in the client's palm, and the client must identify what was written. This assesses the ability to recognize letters or numbers drawn on the skin.
D. This option describes a two-point discrimination test rather than graphesthesia, which focuses on identifying drawn shapes or numbers.
Correct Answer is C
Explanation
A. An audiometer is used to assess hearing ability and is not appropriate for examining the tympanic membrane.
B. An ophthalmoscope is used to examine the interior of the eye and cannot assess tympanic membrane mobility.
C. A pneumatic otoscope is specifically designed for examining the tympanic membrane and allows for assessment of its mobility by using air pressure.
D. A tuning fork is used to evaluate hearing and vibration sense, not tympanic membrane mobility.