A patient with a liver transplant has been receiving cyclosporine [Sandimmune] for 6 months. The nurse reviews this patient's laboratory results and notes a sharp increase in the blood urea nitrogen (BUN) and serum creatinine
Vital signs are normal, and the patient reports no discom-fort. What does the nurse suspect? a. Hepatotoxicity
b. Infection
c. Organ rejection
d. Nephrotoxicity
D
An elevation of BUN and serum creatinine is an indication of nephrotoxicity, which occurs in 75% of patients taking cyclosporine. Hepatotoxicity would cause elevations in liver enzymes, not the BUN and creatinine. Infection would be associated with fever. Organ rejection of a renal transplant would cause elevation in the BUN and creatinine but also would cause tenderness at the graft site and fever.
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