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OPRA Therapeutics and Patient Care QUESTION #3915
Question 1
Which piece of counselling advice given to a patient on long-term rifampicin therapy would be considered LEAST appropriate or incorrect?
  • Your urine may turn a red-orange colour
  • You will require regular liver function tests
  • Your iris colour may darken✔️
  • You will require regular blood count monitoring
Correct Answer Explanation
Iris darkening is a documented adverse effect of latanoprost (a prostaglandin analogue eye drop), not rifampicin. Rifampicin causes red-orange discolouration of body fluids and requires liver function and blood count monitoring.