Persistent E. coli UTI resistant to treatment

40-year-old Hispanic female, 5’2", 242 lbs. Dealing with bladder and pelvic symptoms for about 6 to 7 months. Currently diagnosed with endometrial cancer and taking metoprolol, medroxyprogesterone, and ferrous gluconate. I have a chronic UTI that hasn’t cleared up after multiple rounds of antibiotics like Macrobid, doxycycline, Augmentin, and Keflex. I’m scheduled for a hysterectomy in 12 days for early-stage cancer. While I have pelvic pain and urinary issues, my oncologist claims the UTI won’t interfere with the procedure. However, I’m worried about the risk of sepsis or a kidney infection. I’m struggling to get in with a urogynecologist and am wondering if I should head to the ER or just wait until after my surgery. Any guidance would be helpful.

Which antibiotics did the culture results indicate the E. coli was sensitive to, and what specific signs suggest the infection is still present?