EKG State Test - Study Guide Practice Exam Questions And Answers Guaranteed Pass.

A U wave usually occurs when - correct answer a patient has a very low K+ (Potassium) The ORS complex occurs when - correct answer the ventricles contract On an EKG machine, the Standard checks - correct answer the voltage that the instrument is using The heart has 4 valves that are made up of - correct answer endocardium Blood leaves the heart through the - correct answer pulmonic and aortic valves Pulmonic and Aortic valves are also called - correct answer semilunar valves As blood returns to the heart from the body - correct answer it enters the right atrium Where does the superior vena cava get its blood from? - correct answer the head, neck and upper extremeties The innermost layer of the heart is called the - correct answer endocardium Congestive heart failure (CHF) is a condition when the heart - correct answer cannot meet the demands of the body. The body compensates in three major ways The two entrance valves of the heart are the - correct answer tricuspid and bicuspid valves The semilunar valves are the - correct answer pulmonic and aortic valves The pericardium is the - correct answer fibrous outer fluid filled layer that covers the heart and separates it from the contents in the chest cavity The EKG records the electrical impulses called the - correct answer cardiac cycle The cardiac cycle is represented by the - correct answer P Wave, QRS complex and the T Wave. The P Wave represents the - correct answer contraction of the atrium QRS Complex represents the - correct answer contraction of the ventricles T wave represents the - correct answer relaxation of the ventricles U wave is - correct answer not always seen but represents possible low potassium The right and left atria are known as the - correct answer "receiving" chambers When blood is on its way from the left atrium to the left ventricle - correct answer it goes through the mitral valve The only way to oxygenate the blood is through the - correct answer alveoli and capillaries in the lungs The right and left side of the heart is - correct answer separated by the septum The speed that an EKG is normally run is - correct answer 25 mm/sec The color of the ground lead is - correct answer Green the approximate diameter of the coronary arteries is - correct answer 1/8 inch Another name for the bicuspid valve is - correct answer mitral valve The purpose of the gel on the elctrode is - correct answer to conduct electricity The myocardium will get nourishment from - correct answer the coronary arteries If the blood supply to the myocardium stops the - correct answer area that doesnt receive a blood supply dies The myocardium is the - correct answer thickest layer of the heart The size of a normal heart is - correct answer about the size of your fist the heart functions as a - correct answer pump to pump blood to all the body's cells Blood returns to the heart through the - correct answer inferior and superior vena cava The inferior vena cava brings - correct answer blood from below the diaphragm the superior vena cava gets blood from - correct answer the head, neck and upper extremeties Pulmonary vein is the only vein that carries - correct answer high oxygen blood; comes from the lungs and returns blood back to the left atrium for eventual circulation to body organs and cells the term for "rapid heart beat" is - correct answer tachycardia Coronary insufficiency - correct answer flow is considered insufficient if it cannot meet the needs of the heart The purpose of the conduction system is to - correct answer initiate the heart beat and regulate the cardiac cycle Ectopic is an adjective reerring to - correct answer an event or tissue occuring at a place other than its normal location Ectopic heart beats are generated from an - correct answer impulse originating some other place than the SA node The SA node is located on - correct answer the upper wall of the right atrium The SA nodes function is to - correct answer generate the stimulus to make the heart beat The order of the impulse in the conduction pathway is: - correct answer 1. first it travels to the SA node also known as the sinoatrial node. 2. Next the impulse moves to the AV node also known as the atrioventricular node 3. Then on to the bundle of His 4. Throught the bundle of His where the impulse separates to travel through the right and left bundle branches 5. and finally the impulses reach the purkinje fibers 6. Once th electrical stimulus is in the purkinje fibers the ventricles contract. The term for the heart when it is contracting is - correct answer systole Fibrillation is a nonsynchronous contraction of - correct answer muscle tissue, with individual cells firing at their own rate Fibrillation can be isolated to the - correct answer atria or ventricles. Ventricle fibrillation is not compatible with - correct answer life A heart in fibrillation has been described as looking and feeling like a - correct answer bag of worms In the heart, when the atria contract - correct answer the blood is squeezed into the ventricles When the heart beats too slow - correct answer the patient can suffer from syncope The heart is lociated in the - correct answer Mediastinum The function of the heart is to - correct answer pump sufficient amounts of blood to all of the cells in the body The U wave usually appears after the - correct answer T Wave