Tag Archives: trimethoprim

Case report An 86-year-old man presented to Accident and Emergency (A&E) feeling generally unwell and increasingly confused. Following an assessment, the doctors diagnosed a urinary tract infection (confirmed on dipstick) and discharged him with a standard course of trimethoprim. After a few days, he was readmitted with falls and increasing lethargy. Figure 1. Patient’s electrocardiogram (ECG) on admission – characteristic of severe hyperkalaemia His electrocardiogram (ECG) on admission showed widened QRS complexes and significantly prolonged QT/QTc intervals (figure 1). Figure 2. Patient’s ECG following treatment – complexes retu