What is the name of imaginary equilateral triangle formed by the axes of the limb leads?

Which of the following statements about return of spontaneous circulation (ROSC) is TRUE?

A) Patients with ROSC always regain responsiveness in the prehospital setting. B) ROSC patients need aggressive ventilation to increase venous return to the heart. C) Patients with ROSC are at a high risk for a second cardiac arrest in the prehospital setting. D) Prehospital treatment of ROSC can always address the underlying cause of cardiac arrest.

Which drug schedule contains medications that the pharmacist must accurately count for a controlled substance inventory?

III II V IV