The nurse is assessing a patient with suspected myasthenia gravis. The nurse is aware that which assessment finding supports this diagnosis?
Postural hypotension
Diplopia
Dizziness with sudden head movement
Hand tremors during voluntary movement
The Correct Answer is B
A. Postural hypotension is more commonly associated with autonomic dysfunction (e.g., in Parkinson’s disease or dehydration) and is not a hallmark sign of myasthenia gravis.
B. Diplopia (double vision) is a classic symptom of myasthenia gravis. The disease causes weakness of voluntary muscles, especially those that control eye and eyelid movement, leading to visual disturbances.
C. Dizziness with sudden head movement is often linked to vestibular dysfunction (e.g., benign paroxysmal positional vertigo), not myasthenia gravis.
D. Hand tremors during voluntary movement are more suggestive of cerebellar disorders or essential tremor, not myasthenia gravis, which primarily causes muscle weakness without tremors.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Diazepam is a benzodiazepine that acts quickly to stop active seizures and is the first-line medication for status epilepticus.
B. Lisinopril is an antihypertensive and not used for seizure management.
C. Atenolol is a beta-blocker used for cardiac conditions and not related to seizure treatment.
D. Phenytoin is used for seizure prevention and maintenance therapy but is not the initial emergency treatment for status epilepticus.
Correct Answer is C
Explanation
A. Cerebral palsy (CP) varies widely in severity; not all individuals experience many disabilities.
B. CP is typically caused by decreased oxygen to the brain (hypoxia), not too much oxygen.
C. CP is a non-progressive neurological disorder, meaning the brain injury does not worsen over time, although symptoms may change.
D. CP is usually caused by brain injury before or during birth and is not typically inherited or familial.
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