A nurse is caring for a client who is taking rifampin. Which of the following findings should the nurse monitor for as an adverse effect of the medication?

A. Blurred vision can be a side effect of many medications, but it is not a common adverse effect specifically associated with rifampin. Rifampin’s side effects are more commonly related to liver function and gastrointestinal issues. B. Jaundice is a significant adverse effect of rifampin, indicating potential liver damage. Rifampin can cause hepatotoxicity, leading to elevated liver enzymes and bilirubin levels, which manifest as jaundice. Monitoring liver function tests is crucial for clients on rifampin to detect any early signs of liver damage. C. Irregular heart rate is not typically associated with rifampin. While rifampin can interact with other medications that affect heart rate, it does not directly cause arrhythmias. D. Constipation is not a common adverse effect of rifampin. Gastrointestinal side effects of rifampin usually include nausea, vomiting, and diarrhea rather than constipation.