A DNR doesn't mean withhold antibiotics. It doesn't mean withhold IV medicine's, food, etc.......( Although I have seen some people think it does..)
A DNR "says" if my heart should stop, or I should stop breathing...do not resuscitate me. And I've had to remind people that "this" patient didn't want "this"..or that "this" patient wants everything done short of intubation. As there are "levels" of code status too.
A tracheotomy can help your husband be weaned off the vent. And it can help in his comfort level. He may be able to speak with it, in place also.
Granted I do not know all the facts here...and with the utmost respect..your husband was more than probably immuno-suppressed..and a "set-up" for an infection. Just because he became symptomatic in the hospital...doesn't mean they "gave" it to him.
I can certainly understand your frustration...fore I have witnessed this type of behavior from doctor's and staff before...you may want to speak with a sympathetic case manager..or a ombudsman type within the hospital.
If I can help you please ask.......
I just saw the dates on this thread and I'm praying that you and your husband have been doing better these last 2 days.
Osage Orange has some good information. (and now I have to go read up on the tracheotomy/ostomy in weaning from a ventilator.)