Athough there are no diagnostic laboratory<unk>  associated with PEA<unk><unk><unk>  testing should be ordered to rule out the most common reversible causes of PEA<unk><unk><unk>  like Hyperkalemia or Hypokalemia, hypoxia and acidosis which can be seen withABG,  exsanguination hematocrit.
Pulseless electrical activity laboratory findings
Torsades de pointes laboratory findings
ST elevation myocardial infarction laboratory findings
Encephalopathy electrocardiogram
Brugada syndrome physical examination
Guillain-Barré syndrome electrocardiogram
Brugada syndrome laboratory findings
Ventricular fibrillation physical examination