below (and is summarized in Table 10.3 ): Cardiac: Lactate, base deficit, central venous oxygen saturation (ScvO2 ) (if central line present) measured by co-oximetry Respiratory: Blood gas analysis Hematologic: Complete blood count to assess for leukopenia, anemia, thrombocytopenia, coagulation studies to assess for coagulopathy/disseminated intravascular coagulation Renal: Serum creatinine Hepatic: Transaminases, bilirubin Microbiologic: Blood culture, other bacterial testing based on suspected source (e.g., urinalysis, urine culture, chest x-ray, lumbar puncture, etc.)