Diagnosis is clinical (e.g. shellfish consumption + gastroenteritis, saltwater contact with lesion)
Check electrolytes for repletion if significant vomiting/diarrhea
Vibrio parahemolyticus
ACS/MI
Staphylococcus haemolyticus
Boerhaave's
Vibrio vulnificus
DKA
Streptococcus anginosus
Intracranial Hemorrhage