mrcem2-2152

A 65-year-old woman presents with symptoms of painful urination and frequent urination. A urine dipstick test reveals the presence of blood, protein, white blood cells, and nitrites. She has a history of benign enlargement of the prostate and takes tamsulosin. The diagnosis is a urinary tract infection (UTI) and antibiotics are prescribed. Her blood tests show an eGFR of 38 ml/minute.
Which antibiotic would be the most suitable to prescribe in this situation?