EKG Certification Exam study guide!!

EKG Certification Exam Study Guide Complete 2023 Occurs when a patient has a very low potassium level Ans- U wave What complex occurs when th ventricles contract? Ans- QRS complex the heart has ___ valves? Ans- 4 The two semilunar valves are? Ans- pulmonic and aortic valves Blood returning from the body to the hear enters the? Ans- right atrium The _____ vena cava gets it's blood from the head neck and upper extremities Ans- superior The _____ is the innermost layer of the heart Ans- endocardium _____ ______ ________ is a Condition when the heart cannot meet the demands of the body. AnsCongestive heart failure the two entrance valves of the heart. Ans- tricuspid and bicuspid valves ______ is the fibrous outer fluid filled layer that covers the heartand separates it from the contents in the chest cavity. Ans- pericardium The EKG records the electrical impulses called. Ans- cardiac cycle contraction of the atrium on ekg Ans- Pwave contraction of the ventricles on EKG Ans- QRS complex relaxation of the ventricles on EKG Ans- T wave the right and left atria are know as the Ans- receiving chambers the blood on its way from the left atrium to the left ventricle it goes thro what valve? Ans- mitral valve the only way to oxygenate the blood id through the ____ and _____ in the lungs Ans- alveoli and capillaries the heart is separeted by the _____ Ans- Septum the speed of the EKG is normally run is? Ans- 25 sec The color of the ground lead is? Ans- green What is the approximate diameter of the coronary arteries? Ans- 1/8 inch Another name for the bicuspid valve? Ans- mitral valve What is the purpose of the gel on the electrode? Ans- conducts electricity the coronary arteries give nurishment to the ____. Ans- myocardium The heart is about the size of your____ Ans- fist The heart functions as a ____ to pump blood to all the bodys cells. Ans- pump If the blood slupply to the myocardium stops the area that doesn't receive a blood supply ____. Ansdies What is the thickest layer of the heart? Ans- myocardium The ____ _____ ___ brings blood from below the diaphragm Ans- inferior vena cava _______ is the only vein that carries high oxygen blood Ans- pulmonary vein the term for "rapid heart beat" is Ans- tachycardia left and right coronary arteries supply blood to the hear, flow is considered insuffcient if it cannot meet the needs of the heart. Ans- Coronary insufficiency The purpose of the _______ is to initate the heart beat and regulate the cardiac cycle Ans- conduction system ______ heart beats are generated from an impulse orginating some other place than the SA node AnsEctopic SA node is located on the upper wall of the _______ Ans- right atrium ______ fuctions is to generate the stimulus to make the heart beat. Ans- SA nod