turnforthenurse, MSN, NP 3,364 Posts Specializes in ER, progressive care. Has 7 years experience. Jul 14, 2013 ER docs are not always the most patient types when it comes to urine, particularly when the pt has a fever and/or a white count with no other explanation for such. An A&O pt always has the right to refuse, but usually just showing them the cath scares the you-know-what out of them, and, well, there's your sample.This is very true. Urine is like gold in the ER. Not having a urine sample can delay the patient's discharge (unless of course they decide to leave AMA) and course of treatment at times.