hello.why is your mother in hospice?hasnt the doctor explained her condition in detail to you?
if she has E.Coli
in her urine, it also depends on how significant is the bateruria and then it requires specific traetment depending upon the antibiotic sensitivity.
if she has good kidney
and cardiac function and still continues to have breathing issues, she must be having some respiratory problem.
get her examined and investigated by a physician in detail to know what exact problem does she have other than UTI(urinary tract infection
infective cause is always easy to treat.
all the best.