16th May 2025

Mr Newman is a 65-year-old gentleman who is being reviewed after suffering a complex partial seizure.

Mr Newman is a 65-year-old gentleman who is being reviewed after suffering a complex partial seizure. A decision was made by the medical team to start the patient on carbamazepine. He is currently on long term warfarin therapy for atrial fibrillation. Which of the following is most likely to happen to the patient’s international normalised ratio? 

Select the SINGLE most appropriate option from the list below. Select ONE option only.