Registered Nurse (RN) Respiratory Practice Exam

The correct answer is Rifampin. This medication is known to cause a characteristic orange discoloration in bodily fluids, including sweat and urine. This effect occurs because Rifampin affects metabolic processes, leading to the formation of colored metabolites that are excreted through urine and sweat. Patients on Rifampin are often advised about this potential side effect to avoid confusion with other medical issues or signs of dehydration.

Other medications listed, such as Ethambutol, Streptomycin, and Isoniazid, do not typically result in such discoloration of body fluids and may instead have other side effects or implications that are unrelated to this specific phenomenon. Understanding the effects of Rifampin is particularly important in nursing practice, as it informs patient education on expected side effects during treatment for conditions like tuberculosis.