16th May 2025

Mrs Cooper is an 84-year-old lady who has been admitted with a community acquired pneumonia for which she is receiving antibiotics.

Mrs Cooper is an 84-year-old lady who has been admitted with a community acquired pneumonia for which she is receiving antibiotics. She has a catheter in situ, and it is noted that she had some haematuria overnight. The urine in the bag is a port wine colour. An INR is requested which comes back at 5.6. What medication would likely be responsible for the raised INR?

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