Diagnosis codes are located in the ________, listed alphanumerically and divided into 21 chapters based on cause and body system

In the brain and spinal cord, the myelin sheath is formed by the:

a. Oligodendroglial cells b. Schwann cells c. Neurons d. Astrocytes

You find a patient, who seized for approximately 2 minutes, supine on the kitchen floor. He responds to painful stimuli and has snoring respirations. Emergency Medical Responders are holding manual in-line spinal stabilization and report the following vital signs: heart rate is 124 beats per minute, and his pulse oximetry is 89% on room air. He has cool and clammy skin. Which one of the following

should you do first? A) Suction the airway. B) Perform a jaw-thrust maneuver. C) Provide supplemental oxygen. D) Determine a history of seizures.