It always makes me leery when a baby is confirmed a UTI via catheter. Is your son intact? If so, he may or may not have had a UTI when they cathed him, but caths can certainly cause UTI's in infants easily & intact males are at greatest risks of that occurring. :/
One study suggested that the method used to obtain urine for culture may influence the rate of infection,64 with the greatest risk for infection noted in uncircumcised male infants who had samples obtained by catheterization, compared with those who had samples obtained by suprapubic aspiration.
I am probably a bit paranoid though because I have 2 intact boys in a high circ rate area & they are CONSTANTLY trying to say intact boys have UTI's here. My 2nd son had a minor yeast infection & I took him in (I treated him before we left with just probiotic powder & was embarrassed once we saw the Dr because by the time we saw her his penis looked normal - figures) anyway...despite her agreeing
with me that it was yeast (based on what I said it looked like before & how it all went back to normal using probiotic powder), she wanted to do a urine capture with a cath. I declined. Then she wanted him on an antibiotic in case
it was e-coli related (she couldn't tell em WHY she would think that, I asked) and then went about how it could be a UTI even though
he had NO symptoms, acted fine, was urinating great (had spent most of the day diaperless, etc) and the irrational he did have was now gone.
So SORRY for the 20 questions. I am a tad paranoid for good reason where I am from. I am hoping
it is different there.