A patient with tuberculosis is taking rifampin (Rifadin), ethambutol, isoniazid (Laniazid), and pyrazinamide. The patient states that his contact lenses are stained orange after each use. How should the nurse respond?


•Rifampin may cause body fluids to become red or orange. Urine, tears, sweat, sputum, and feces can all be affected. This is a benign side effect.

•Calling the physician is unnecessary, as this is an expected adverse reaction that is harmless.

•Administering a vitamin K injection is not indicated, there are no signs of bleeding.

•A patient should never discontinue tuberculosis medications without consulting a physician.

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