Renal and hepatic function tests (eg, creatinine, blood urea nitrogen, bilirubin, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, albumin, lipase)
Blood chemistry (eg, sodium, chloride, magnesium, calcium, phosphate, glucose, lactate)
Blood cultures
Urinalysis and urine cultures
Abdominal ultrasonography
Complete blood count with differential
Coagulation studies (eg, prothrombin time [PT], activated partial thromboplastin time [aPTT], fibrinogen levels)
Computed tomography of the abdomen or head
Chest, abdominal, or extremity radiography
Gram stain and culture of secretions and tissue
