The nurse is providing care to a patient with tuberculosis who is taking ethambutol (Myambutol). Which statement by the patient indicates a correct understanding of the effects of ethambutol?
a. "Dizziness, drowsiness, and decreased urinary output are common with this drug, but they will subside over time."
b. "Constipation will be a problem, so I will increase the fiber in my diet."
c. "I will need to have my eyes checked periodically while I am taking this drug."
d. "This medication may cause my bodily secretions to turn bluish green."
ANS: C
The only significant adverse effect of ethambutol is optic neuritis. Patients should be advised to have their eyes checked periodically.
Dizziness, drowsiness, and decreased urinary output are not listed as adverse effects.
Gastrointestinal (GI) upset may occur, but constipation is not listed as an adverse effect.
Ethambutol does not turn the urine bluish green.
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