The 38-year-old patient has just been administered edrophonium (Enlon, Reversol). The nurse will know whether this patient has myasthenia gravis if the patient exhibits what within 30 minutes after receiving the medication?
A) Increased muscle strength
B) Decreased adventitious breath sounds
C) Decreased muscle spasms
D) Increased urinary output
A
Feedback:
Edrophonium is administered to diagnose myasthenia gravis because administration of this drug will cause a marked increase in muscle strength within 30 minutes of administration if the patient has this disease. Edrophonium does not produce decreased adventitious breath sounds, decreased muscle spasms, or increased urinary output.
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