At the same time, the family/pt may sometimes know the pts pmhx better. Using that pulmonary fibrosis example, i can see why the pt or family care providers might have an issue, expecially if it was a very 'cookbook' medic or emtb performing care. Its 2013 and we still cling onto the oxygen dogma of 'if a little's good, then more is better' - dogma that has been known to cause harm since the 1980's (by the rt's and pulmonary docs).