hi my dad is in the cardilogy dept at a local hospital, suffers from heart and kidney disease went in last week with severe edema in the legs, groin, and water in lungs came out of CCU now in a private room recovering and is on O2, called nurse nurse syas he is doing very good has been in hospital now 10 days, my concern is 2 days ago while visiting him i noticed he was very tired, speech difficult to understand yet he is very coherent otherwise why is this happening his speech is slurred, is this due to the O2?
Hello, Because of the fluids in the lungs, he would have been offered diuretic s, these Chat Doctor.  It is this decrease in body sodium that causes a little slurring of speech / slowed mentation. So if it was only for a short time, that is the most common reason.  Oxygen per se will not cause slurring rather its decrease in oxygen which causes