27th May 2025

A 79-year-old gentleman presents to A&E with a 2-day history of shortness of breath, and a cough productive of green sputum.

A 79-year-old gentleman presents to A&E with a 2-day history of shortness of breath, and a cough productive of green sputum. He is diagnosed with a community-acquired pneumonia, admitted, and started on antibiotics. His ECG taken on arrival to A&E was normal. Three days after admission, a repeat ECG is done, which shows a QTc interval of 540 ms. Which of the following antibiotics is likely to be responsible for the ECG finding?

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