The gold standard for monitoring intracranial pressure (ICP) is the:

On scene, a confused 68-year-old female with possible stroke has an SpO2 of 91% on room air. Which one of the following indicates the most appropriate and beneficial type of oxygen therapy for this patient?

A) SpO2 98% with 12 lpm O2 via nonrebreather B) SpO2 95% with 2 lpm O2 via nasal cannula C) SpO2 100% with 15 lpm O2 via nonrebreather D) SpO2 97% with 4 lpm O2 via nasal cannula

A patient with cardiovascular disease has received two cartridges of 4% articaine, 1:200:000 epinephrine. How many milligrams of vasoconstrictor has this patient received? How many additional cartridges of the same drug solution can the patient receive?

A) 0.009 mg received; two additional cartridges B) 0.018 mg received; two additional cartridges C) 0.18 mg received; no additional cartridges D) 0.036 mg received; no additional cartridges