| Neurological | Subarachnoid hemorrhage |
| Coronary | Coronary artery aneurysm, coronary artery occlusion, coronary artery stenosis, spontaneous coronary artery dissection, prinzmetal angina, cocaine abuse |
| Cardiac | Pericarditis, myocarditis, perimyocarditis, Brugada syndrome, left ventricular hypertrophy, left bundle branch block, cardioversion, takotsubo cardiomyopathy, cardiac compression |
| Vascular | Aortic dissection, pulmonary thromboembolism |
| Pulmonary | Pneumonia, COPD, mediastinal tumor |
| Abdominal | Cholecystitis, pancreatitis, hiatal hernia, subdiaphragmatic abscess, peritonitis |
| Electrolytes | Hyperkalemia, hyper/hypophosphatemia |
| Endocrine | Pheochromocytoma, thyroid storm |
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