The nurse is caring for a recently diagnosed patient with myasthenia gravis whose CT scan reveals an enlarged thymus gland
Which additional assessment parameter should the nurse complete to confirm the diagnosis of myasthenia gravis?
A) Passive range of motion of the neck
B) Check of deep tendon reflexes
C) Application of painful stimuli to legs
D) Visual screening using the Snellen chart
Ans: D
Feedback: Patients with myasthenia gravis commonly exhibit diplopia (double vision) and ptosis. Using the Snellen chart enables the nurse to assess both of these clinical manifestations. Performing passive range of motion on the neck indicates whether or not the patient has nuchal rigidity, which is a clinical manifestation of meningitis, not myasthenia gravis. Checking deep tendon reflexes is not specific to myasthenia gravis. Application of painful stimuli assesses level of consciousness but also is not specific to myasthenia gravis.
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