The patient with severe anxiety and claustrophobia is administered intravenous midazolam prior to an outpatient magnetic resonance imaging (MRI) scan of the brain. The nurse informs the patient’s companion that the patient can leave at which time following the procedure?

The patient is brought to the emergency department following a fire in his home. The nurse notes that the patient has singed facial hair and soot on his face. He is mildly tachypneic, his lung sounds are clear and equal, and the nurse notes pronounced stridor. His oxygen saturation is 90% on room air. Patient also complains of a sore throat and severe pain in his arms and hands, which have about 50% of their area covered by burns. Which of the following is the next best step in management?

A patient’s cerebrospinal fluid (CSF) is noted to have a protein level of 52 mg/dL and a glucose level of 28 mg/dL (serum glucose level 82 mg/dL). Additionally, there is an abundance (>1,000 cells/mL) of polymorphonucleocytes (PMNs) present but no erythrocytes. How does the nurse interpret these results?