Should I be ashamed?

I work at a hospital as a phlebotomist, and just recently I was called upon by one of the doctors to translate (from Spanish to Englih) for a patient in the critical care unit. They're keeping the patient in isolation and the doctor asked me to put on latex gloves, a surgical mask and a surgical robe before entering the patient's room. As it turns out, the patient has tuberculosis, which keeps reccuring due to an immunity to the medications that they've been giving him. The doctor had me tell the patient that he needs to try and cough up some phlem and ize the sample so they're better able to understand how advanced his case is. The patient wasn't too keen on the idea of coughing up phlem and put all sorts of excuses. The doctor then told him that the sample was needed or not the doctor would have to remove samples from his nasal pages himself. The doctor also told him that treatment is absolutely neccesary, or not the patient will not be released into public.