PaO 2 or âpartial pressure of oxygenâ measures the amount of free oxygen molecules dissolved in plasma (measured in mmHg or Torr). This is not always the most reliable account of the actual oxygenation state of blood as the vast majority of O 2 is bound to hemoglobin.
Signs and symptoms of foodborne botulism include: 1  Difficulty swallowing or speaking. 2  Dry mouth. 3  Facial weakness on both sides of the face.  Blurred or double 1  vision. Drooping eyelids.  Trouble 1  breathing. Nausea, vomiting and abdominal cramps.  Paralysis.
Without treatment, people with botulism may go on to develop paralysis of the arms, legs, trunk, and the muscles used for breathing. When botulism is caused by contaminated food, symptoms usually appear within 18 to 36 hours. However, they can start as soon as six hours later â or as long as 10 days later.