HESI Pharmacology

HESI Pharmacology ( 46 Questions)

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 that the client has been self-administering St. John's Wort, an herbal preparation on the advice of a friend.

Which information is most significant about this finding?



Correct Answer: B

Cyclosporine is an immunosuppressive medication commonly used to prevent graft rejection after organ transplantation. St. John's Wort is known to induce cytochrome P450 enzymes, which can increase the metabolism and decrease the effectiveness of many medications, including cyclosporine. This interaction can lead to decreased plasma concentrations of cyclosporine, which can increase the risk of graft rejection. Therefore, it is important to advise the client to discontinue the use of St. John's Wort and inform their healthcare provider about any herbal or supplement use to prevent potential interactions with prescribed medications. Options a, c, and d are not directly related to the client's current condition and are not as significant as option b.




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