My mother has had a low-grade persisitent fever for the last 5 weeks. It drops below 99 at times. But frequently spikes up. She has had recent problems with bloods in her fistula with excision performed and has been on 4 rounds of antibiotics. She has been in and out of the hospital related to this and the blood clot. She just began dialysis about 3 months ago. Any help would be appreciated.