Jane, a 20-year old college student is admitted to the hospital with a tentative diagnosis of myasthenia gravis. She is scheduled to have a series of diagnostic studies for myasthenia gravis, including a Tensilon test. In preparing her for this procedure, the nurse explains that her response to the medication will confirm the diagnosis if Tensilon produces:
The client shows a marked improvement of muscle strength.
The client has muscles become weakened due to the impaired ability to respond to nerve signals
There is reduced amplitude of electrical stimulation in the muscle.
The anti-acetylcholine receptor antibodies are present.
The Correct Answer is A
Choice A rationale: The Tensilon test involves injecting edrophonium, and in myasthenia gravis, temporary improvement in muscle strength confirms the diagnosis by demonstrating increased acetylcholine activity at the neuromuscular junction.
Choice B rationale: This describes the pathophysiology of myasthenia gravis but doesn’t directly confirm the diagnosis via the Tensilon test.
Choice C rationale: While this may be seen in myasthenia gravis, the Tensilon test specifically aims to observe improved muscle strength after administration.
Choice D rationale: While the presence of these antibodies is a characteristic of myasthenia gravis, the Tensilon test is used to assess the immediate response to the medication for diagnostic confirmation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale: Addressing the obstruction and restoring urinary flow is a priority to prevent complications.
Choice B rationale: Managing pain caused by the stone obstruction is essential for the client's comfort and well-being.
Choice C rationale: Preventing urinary stasis and subsequent infection is crucial to avoid sepsis.
Choice D rationale: Education about prevention, though important, might have a lower priority compared to addressing immediate complications like obstruction and pain.
Correct Answer is A
Explanation
Choice A rationale: Phenazopyridine can cause a harmless side effect of turning urine a reddish-orange color.
Choice B rationale: Phenazopyridine is not contraindicated in individuals allergic to penicillin.
Choice C rationale: Phenazopyridine is not an antibiotic; it's a medication used to relieve urinary pain. Antibiotics are prescribed separately to treat UTIs.
Choice D rationale: Phenazopyridine should be taken with food or after eating to minimize stomach upset, but it doesn't need to be taken between meals or at bedtime.
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