A 26-year-old male is admitted with severe pain radiating
from his left loin to the left groin. He also has haematuria.
He gives a history of previous urinary tract infections. Clinical
examination is unremarkable. Investigations are as follows:
Serum Sodium 140mmol/L
Serum Potassium 2.8 mmol/L
Urea 5.7 mmol/L
Creatinine 107 micromoles/L
Chloride 115 mmol/l
Bicarbonate 16 mol/L
In this patient which of the following would you use to
prevent recurrence of his problems?
Long term antibiotics