Medical Terminology
______ is the measurement of pressure against artery walls when the left ventricle is at rest.
Diastole
This sign, meaning absence of electrical activity in the heart, indicates a long period of ischemia and is almost always fatal.
Asystole
This is the range of doses for administering Aspirin to a patient with cardiac-related chest pain.
81 - 324 mg
Each of the heart's chambers is separated by one of these, which only allow blood to flow in one direction.
Valve
The "pacemaker" of the heart is also called ________.
Sinoatrial (SA) node
_______ ________ is the volume of blood ejected by the heart each minute.
Cardiac output
This condition presents similarly to a heart attack but is usually resolved with rest and is predictable.
Angina pectoris
This medication may be given to relieve cardiac-related chest pain only after contacting medical control.
Nitroglycerin
The lower chambers of the heart are known as _______.
Ventricles
This characteristic of heart tissue allows it to contract without external stimulus.
Automaticity
______ is the constant flow of oxygenated blood to tissues.
Perfusion
Pain associated with a myocardial infarction differs from angina pain in that it generally lasts longer than ___ minutes and is not relieved with rest.
30
This electrical therapy is intended to restore normal cardiac rhythms when a lethal cardiac rhythm exists.
Defibrillation
Pulmonary artery
This area of the cardiac conduction system pauses each impulse to allow the ventricles to fill with blood.
Atrioventricular (AV) node
Decreased blood flow to tissues is called ______.
Ischemia
This sign, meaning abnormal heart rhythm, includes premature ventricular contractions, tachycardia, bradycardia, ventricular tachycardia and ventricular fibrillation, and may indicate myocardial ischemia.
Dysrhythmia
Oxygen should be administered in the setting of cardiac-related chest pain if the SpO2 is less than ____.
95%
These are the 3 layers of the heart muscle.
Epicardium, myocardium, and endocardium
These fibers are the end of the cardiac conduction system stimulate the lower chambers to depolarize.
The Purkinje system
The build-up of calcium and cholesterol in the artery walls is termed _________.
Atherosclerosis
These are 5 examples of common signs and symptoms of a heart attack (acute myocardial infarction).
Weakness, nausea, sweating
Chest pain, discomfort, or pressure
Lower jaw, arm, back, abdomen or neck pain
Irregular heartbeat and syncope (fainting)
Shortness of breath
Nausea/vomiting
Pink, frothy sputum
Sudden death
The preferred treatment for oxygen delivery in the presence of pulmonary edema in a spontaneously breathing patient is ___________.
Continuous positive airway pressure (CPAP)
The wall separating the lower chambers of the heart is called _______.
Interventricular septum
These 2 parts of the autonomic nervous system balance control of the cardiac conduction system.