An alternate title could be:  "How to waste a few hours and hundreds of dollars". My wife had the flu. After a few days, I take her to her PCP.  They confirm that she has type B but it's too late for Tamiflu.  The oximeter was showing a lower O2 saturation of 91%.  But the X-rays were negative for pneumonia and her lungs were clear.  Just to be cautious, the doctor said that we should consider admitting her and the only way to do that would be to go thru an ER at a local hosp