You are on scene in a remote part of a local park, where an unresponsive female patient was found by a passing security guard. The female patient, who looks to be in her 20s, has needle tracks on her arms; an empty syringe was found nearby. You have initiated spine motion restriction precautions, inserted a nasal airway, and alerted dispatch for ALS backup. The patient is currently breathing adequately and has a blood pressure of 102/78 mmHg, a heart rate of 68 beats/min, and respirations of 12 breaths/min. While awaiting arrival of the ALS unit, which of these steps is most appropriate?

A) Administer 1 mg of Narcan either intramuscularly or subcutaneously
B) Lay the patient on her side and administer one tube of oral glucose
C) Repeat the reassessment and vital signs every 15 minutes
D) Administer oxygen so as to maintain a pulse oximeter reading of 94% or greater

D) Administer oxygen so as to maintain a pulse oximeter reading of 94% or greater