NREMT AEMT questions with correct answers

You are on the scene w/ a 28-year-old female patient complaining of chest pain. A 12-lead shows normal sinus rhythm with a pulse of 88 bpm. What structure of the cardiac conduction system is responsible for this rhythm and rate? Correct Answer-SA Node *"Primary pacemaker"- intrinsic rate of 60-100bpm. In the human heart, the right ventricle pumps what? Correct Answer-Deoxygenated blood to pulmonary circulation Why must you question a patient about ED drug use prior to administration of nitroglycerin? Correct Answer-Administration of nitroglycerin can cause dangerous hypotension if there has been recent ED drug use. *Both drugs are vasodilators. An action potential begins in a myocardial cell when __ enters the cell, giving it a __ charge. Correct Answer-sodium, positive What heart rhythm often leads to ventricular fibrillation? Correct Answer-Ventricular tachycardia You are responding to an unrespo