A nurse is caring for a client who has cervical radiculopathy due to a herniated disc at C6-C7 level. Which of the following muscles should the nurse assess for weakness?
Biceps brachii.
Triceps brachii.
Deltoid.
Trapezius.
The Correct Answer is B
Choice A reason:
This is incorrect because biceps brachii is innervated by C5-C6 nerve roots, which are not affected by a herniated disc at C6-C7 level.
Choice B reason:
This is the correct answer because triceps brachii is innervated by C6-C8 nerve roots, which are affected by a herniated disc at C6-C7 level.
Choice C reason:
This is incorrect because deltoid is innervated by C5-C6 nerve roots, which are not affected by a herniated disc at C6-C7 level.
Choice D reason:
This is incorrect because trapezius is innervated by cranial nerve XI (spinal accessory nerve), which is not affected by a herniated disc at C6-C7 level.
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Related Questions
Correct Answer is ["A","C","E"]
Explanation
Choice A reason:
This is a correct answer, as bladder control is regulated by nerves that originate from the sacral region of the spinal cord, which is below T6.
Choice B reason:
This is an incorrect answer, as respiratory rate is regulated by nerves that originate from the cervical and thoracic regions of the spinal cord, which are above T6.
Choice C reason:
This is a correct answer, as heart rate is regulated by nerves that originate from the thoracic and lumbar regions of the spinal cord, which are below T6.
Choice D reason:
This is an incorrect answer, as arm movement is regulated by nerves that originate from the cervical region of the spinal cord, which is above T6.
Choice E reason:
This is a correct answer, as leg movement is regulated by nerves that originate from the lumbar and sacral regions of the spinal cord, which are below T6.
Correct Answer is A
Explanation
Choice A reason:
This is the correct answer because peripheral neuropathy affects the sensory nerves, which can cause loss of sensation, especially in the distal parts of the body. Diabetes mellitus is a common cause of peripheral neuropathy.
Choice B reason:
This is incorrect because peripheral neuropathy does not affect the motor nerves, which control muscle tone and reflexes. Increased muscle tone and reflexes in the upper limbs are more likely to indicate a central nervous system disorder, such as a stroke or spinal cord injury.
Choice C reason:
This is incorrect because peripheral neuropathy can cause decreased pain perception in any part of the body, not just the hands and fingers. However, this is not a specific finding for peripheral neuropathy, as other conditions can also impair pain perception, such as spinal cord injury or opioid use.
Choice D reason:
This is incorrect because peripheral neuropathy does not affect the autonomic nerves, which control sweating and flushing. Increased sweating and flushing in the face and neck are more likely to indicate a sympathetic nervous system disorder, such as pheochromocytoma or carcinoid syndrome.
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