It is 28/03/2016. You are an FY1 on call and have been asked to prescribe warfarin for Perrie Tonism, a lady on ward 11. Her hospital number is MS338451, and her date of birth is 25/4/41.
Perry had been admitted to hospital following an infective exacerbation of COPD. Since admission it has been noted that she is in Atrial Fibrillation. She is known to have Hypertension and COPD. Her current medications include: Metformin, Gliclazide, Symbicort inhaler, Salbutamol inhaler, Amoxicillin and Prednisolone.
After careful deliberation between Perrie and the medical team, with support from the ward pharmacist, all are in agreement that it would be beneficial for Perrie to begin warfarin treatment to reduce her stroke risk.
Her INR has been measured since this decision has been made:
24/03/2016 INR – not measured
25/03/2016 INR – not measured
26/03/2016 INR – 2.3
27/03/2016 INR – 1.9
28/03/2016 INR – 2.2
Using these readings and the Warfarin algorithm, please fill in the Warfarin chart below and prescribe her next dose accordingly.
