A nurse is teaching a group of older adults about risk factors for developing a stroke. Which non-modifiable risk factors should the nurse include in the teaching?

Choice A rationale
Myasthenia gravis is a neuromuscular disorder characterized by weakness and fatigue of voluntary muscles. Edrophonium is a medication that is used in the diagnosis and treatment of myasthenia gravis. It works by inhibiting the breakdown of acetylcholine, a neurotransmitter that transmits signals in the nervous system, thereby improving muscle strength.
Choice B rationale
Myasthenia gravis is not a disorder of motor and sensory dysfunction. It primarily affects the neuromuscular junction, leading to muscle weakness and fatigue. Sensory function is typically not affected in myasthenia gravis.
Choice C rationale
This statement is correct in that myasthenia gravis does not cause sensory impairment. However, it does not indicate an understanding of the disease as a whole, as it does not address the primary symptom of muscle weakness.
Choice D rationale
Myasthenia gravis does cause progressive muscle weakness, but it does not cause sensory deficits. Therefore, this statement indicates a partial understanding of the disease.

Choice B rationale
If a patient states that he cannot see the top of the Snellen chart, the nurse should determine whether the patient can count fingers. If the patient is unable to read the top line of the Snellen

chart at 6 meters, the nurse can reduce the distance to 3 meters from the Snellen chart. If the patient still cannot read the chart, the nurse can then determine whether the patient can count fingers.
Choice A rationale
While documenting findings is an important part of the nursing process, it would not be the immediate action the nurse should take if a patient cannot see the top of the Snellen chart.
Choice C rationale
Obtaining a tumbling E chart to assess visual acuity could be considered if the patient is unable to read letters or numbers, but it would not be the immediate action the nurse should take if a patient cannot see the top of the Snellen chart.
Choice D rationale
Completing an internal eye exam would not be the immediate action the nurse should take if a patient cannot see the top of the Snellen chart.