29th February 2024

A 76-year-old gentleman has recently attended an annual health check and received some blood results.

A 76-year-old gentleman has recently attended an annual health check and received some blood results. He has a past medical history of epilepsy, depression, GORD, and hypertension. His blood results are shown below:

Na 130 (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 220 x 109 (150-400 x 109/l)

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

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