Cardiology FISDAP Unit Exam, FISDAP CARDIOLOGY, EMTB Cardiac

Cardiology FISDAP Unit Exam, FISDAP CARDIOLOGY, EMTB Cardiac Coronary arteries - corrrect answer Start just above the aortic valve. Supplies blood to the right ventricle and to the inferior wall of the left ventricle. Right and left carotid arteries - corrrect answer Supply the head and brain w/ blood Subclavian arteries - corrrect answer Supply blood to upper extremities and become the brachial arteries once they reach the arm. Which arteries supply blood to the hands? - corrrect answer Radial and ulnar arteries What does the descending aorta branch into? - corrrect answer The common iliac arteries, which supply blood to the groin, pelvis, and legs. The iliac becomes the artery as it enters the leg thru the groin, which then becomes the artery at the knee. - corrrect answer Femoral; Tibial (anterior/front and posterior/back) Which artery supplies the feet? - corrrect answer The peroneal artery Cardiac output - corrrect answer Heart rate X volume of blood ejected w/ each contraction. This is the vol of blood that passes thru the heart in 1 min/amt of blood pumped out of left ventricle in 1 min and is the best measure of the output of the heart. Perfusion - corrrect answer Constant flow of oxygenated blood to the tissues Stroke volume - corrrect answer Vol of blood pumped out by the left ventricle in one cardiac cycle/with each contraction. It's affected by preload, afterload, and contractility. Preload is related to venous return to the rt atrium. Afterload is associated w/ systemicc vascular resistance, which is a function of the constriction of the systemic bv's. Contractility refers to how forcefully the heart contracts. Ischemia - corrrect answer Insufficient O2 supply that deprives tissues of nutrients, resulting from partial blockage of blood flow; potentially reversible. Lumen - corrrect answer Inside diameter of an artery or other hollow structure Infarction - corrrect answer Tissue death V-fib - corrrect answer Disorganized, ineffective twitching of the ventricles, resulting in no blood flow and a state of cardiac arrest. V-tach - corrrect answer Rapid heart rhythm in which electrical impulse begins in the ventricle instead of the atrium, which may result in inadequate blood flow and eventually deteriorate into cardiac arrest.