Medca EKG Practice Questions with 100% Correct Solutions

Medca EKG Practice Questions with 100% Correct Solutions A device on the skin that picks up electrical impulses given off by the heart is known as - Correct Answer ️️ -electrode The heart is located - Correct Answer ️️ -on the left side of the chest The body returns oxygen-poor blood to the heart via the - Correct Answer ️️ -vena cavae In lead l, activity of the heart is being measured from - Correct Answer ️️ -the right arm to the left arm The human heart weighs approximately - Correct Answer ️️ -11 ounces What position should the patient be in for an ECG - Correct Answer ️️ -supine Where is the chest electrode V2 located - Correct Answer ️️ -at the fourth intercostal space at the left margin of the sternum Lead l, ll, lll are called - Correct Answer ️️ -standard leads The right and left atrium are the __________chambers - Correct Answer ️️ -receiving The atria contains what kind of blood - Correct Answer ️️ -both oxygenated and deoxygenated blood The __________ valve separates the left ventricle from the aorta - Correct Answer ️️ - aortic The __________ regulate the flow of blood into and out of the proper chambers - Correct Answer ️️ -valves Which electrode is used as a ground reference - Correct Answer ️️ -right leg The standard ECG consists of how many leads - Correct Answer ️️ -12 The contraction of the heart muscle is cause by the flow of ___________ through the muscle tissue - Correct Answer ️️ -electrical impulse The __________ pressure is the pressure inside the arteries during ventricular contraction; when blood is pumped from the heart to the body - Correct Answer ️️ - systolic The ECG tracing should be performed in a quiet environment because - Correct Answer ️️ -interference is minimized (True or False) The ECG records the actual image of the heart - Correct Answer ️️ - false The hardest working chamber if the heart is the - Correct Answer ️️ -left ventricle What is the term used to refer to an electrocardiogram that is within normal limits - Correct Answer ️️ -normal sinus rhythm The augmented leads are - Correct Answer ️️ -unipolar The epicardium is the - Correct Answer ️️ -outer layer of the heart wall The ability of the pacemaker cells of the heart to create an electrical impulse without being stimulated from another source - Correct Answer ️️ -automaticity