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.
Food poisoning. In botulism food poisoning, the toxin is produced by the vegetative cells of C botulinum in contaminated food, and preformed toxin then is ingested with the contaminated food. The incubation time can vary from a few hours to 10 days, but most commonly is 18â36 hours.linical Manifestations. Botulism is a disease caused by the toxin of a diverse group of clostridia called C botulinum. This neurotoxin characteristically causes a symmetrical, descending paralysis (Fig. 18-3). The symptoms of botulism can occur in both the nervous system and the alimentary tract of the patient.