Pharmacology HESI Practice Related

Review Pharmacology HESI Practice related questions and content

A client who received a renal transplant three months ago is readmitted to the acute care unit with signs of graft rejection. While taking the client's history, the nurse determines the client has been self-administering St. John's wort, an herbal preparation, on the advice of a friend. What information is most significant about this finding?

  • A. Wort can decrease plasma concentration of Cyclospora
  • B. Wort can decrease plasma concentration of Tacrolimus
  • C. Wort can decrease plasma concentration of Cyclosporine
  • D. Wort can decrease plasma concentration of Mycophenolate
Correct Answer: C

Rationale: The most significant information about the client self-administering St. John's wort, an herbal preparation, is that it can decrease the plasma concentration of Cyclosporine. St. John's wort is known to reduce the efficacy of Cyclosporine, which is a common immunosuppressant drug used to prevent transplant rejection. Choices A, B, and D are incorrect because St. John's wort does not affect the plasma concentration of Cyclospora, Tacrolimus, or Mycophenolate.