A 50-year-old female with a history of recurrent calcium oxalate kidney stones presents with lower abdominal pain and dysuria. Urinalysis reveals the presence of nitrites and leukocyte esterase. What is the likely diagnosis and what is the treatment?
This patient's symptoms and urinalysis findings suggest a urinary tract infection (UTI), possibly complicated by a kidney stone. She would need a urine culture to confirm the infection and identify the causative organism. Empirical antibiotic treatment should be started, guided by local antimicrobial resistance patterns, and then adjusted based on culture results. The presence of a stone may complicate the infection, so imaging to evaluate for hydronephrosis or abscess may be necessary.