(Seattle, WA)  --  Researchers are considering treatment options for an emaciated southern resident orca after lab results confirmed she has a parasite.  The National Oceanic and Atmospheric Administration released the lab results Friday for the orca known as J50.  NOAA says the results showed moderate levels of a parasite that generally doesn't cause problems for healthy adult whales.  However, researches say the parasite can penetrate the stomach lining of emaciated animals and cause a bacterial infection that can infect the bloodstream and organs.  Researchers are hoping to treat J50 with a de-wormer and an antibiotic.