Medical Education / Laboratory Medicine / Humans / Hyperglycemia / Blood Glucose / INTENSIVE CARE / Female / Male / Intensive Care Unit / Reproducibility of Results / Seizures / Intensive Care Units / Type 2 Diabetes Mellitus / Hematocrit / Critical Illness / Postoperative Complications / INTENSIVE CARE / Female / Male / Intensive Care Unit / Reproducibility of Results / Seizures / Intensive Care Units / Type 2 Diabetes Mellitus / Hematocrit / Critical Illness / Postoperative Complications