Which finding is most consistent with a lower motor neuron lesion?
Correct answer: A. Flaccid weakness with muscle wasting and reduced reflexes
- A. Flaccid weakness with muscle wasting and reduced reflexes
- B. Spastic weakness with increased tone and brisk reflexes
- C. Positive Babinski response with preserved muscle bulk
- D. Slow voluntary movement with increased resistance to motion
Explanation
Lower motor neuron damage interrupts the final motor pathway and commonly causes flaccidity, muscle atrophy, fasciculations and reduced reflexes. Spasticity, hyperreflexia and a Babinski response are more typical of upper motor neuron damage.
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About Neurological Nursing
Covers nursing assessment and management of stroke, epilepsy, meningitis, raised intracranial pressure, head injury, spinal cord disorders, Parkinson disease and multiple sclerosis. Key areas include level of consciousness, pupil responses, motor and sensory findings, seizure precautions and distinguishing upper motor neuron from lower motor neuron signs.
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