Evaluation	Tests
Laboratory	Arterial blood gas* Basic metabolic panel Blood alcohol level* Coagulation panel Complete blood count d-dimer Glucose† Lipid panel Liver enzymes Pregnancy test* Rapid plasma reagin* Toxicology screen* Troponin
Procedure	Electrocardiography Electroencephalography* Lumbar puncture* Oxygen saturation
Radiologic	Chest radiography* Magnetic resonance imaging of the brain Noncontrast computed tomography of the brain† Transthoracic echocardiography with bubble study*