A Patient Who Has Been Taking Medications to Treat TB

A patient who has been taking medications to treat TB tells the primary care NP that the infectious disease specialist has added ethambutol to the drug regimen.The patient asks the NP for information about this drug.The NP should explain that this drug:

A) should be taken 1 hour before or 2 hours after a meal.
B) should not be taken by patients who have renal impairment.
C) requires more frequent monitoring of LFTs.
D) means the patient will need regular vision examinations and evaluation of color vision.