NYC

electrical conduction of the heart The flow of electrical current causes smooth, coordinated heart contractions; they produce pumping action of the heart Depolarization electrical charges on the surface of the muscle cell change from positive to negative Repolarization the heart returns to its resting state, and the positive charge is restored to the surface Where do the electrical impulses begin? Electrical impulses begin high in the atria in the sinoatrial node, travel to the atrioventr...

Signs and symptoms of a sympathomimetic drug overdose include: a. slurred speech b. tachycardia c. hypothermia d. hypotension b. tachycardia Your priority in caring for a patient with a surface contact poisoning is to: a. obtain and maintain a patent airway b. avoid contamination yourself c. decontaminate the patient's skin d. move the patient to a safe area b. avoid contaminating yourself A 25-year-old man overdosed on heroin and is unresponsive. His breathing is slow and shallow and...

West Coast EMT Block 4 Study Guide Rated A+ Know what cavitation is Results from rapid changes in tissue and fluid pressure that occur with the passage of the projectile, can result in serious injury to internal organs distant to the actual path of the bullet. Know Newton's First Law of Motion The first law states that objects at rest tend to stay at rest and objects in motion tend to stay in motion unless acted upon by an outside force. Kinetic Energy The energy of a moving object. Refl...