29th February 2024

A 72-year-old lady has recently received a new diagnosis of heart failure and has been started on some new medications.

A 72-year-old lady has recently received a new diagnosis of heart failure and has been started on some new medications. She has recently received some recent blood results which are shown below:

Na 142 (135-145 mmol/l)

K 3.8 (3.5-5 mmol/l)

Ur 5 (3-7 mmol/l)

Cr 98 (60-125 umol/l)

Hb 135 (115-160g/l)

Plts 46 x 109 (150-400 x 109/l)

Neuts 2.1 x 109 (2.0-7.0 x 109/l)

Which of the following medications is most likely to have caused the abnormality shown?