MSN 570 PATHO MIDTERM STUDY GUIDE 2023

MSN 570 PATHO MIDTERM STUDY GUIDE 2023 • Genetic mutation that results in change of amino acids o missense mutation • Heart sound with left-sided HF o S3-S4 • Left AV valve o mitral valve / bicuspid valve • Poiseuille’s law the velocity of the steady flow of a fluid through a narrow tube (as a blood vessel or a catheter) varies directly as the pressure and the fourth power of the radius of the tube and inversely as the length of the tube and the coefficient of viscosity • Ectopic conduction o Ectopic beat is a disturbance of the cardiac rhythm frequently related to the electrical conduction system of the heart, in which beats arise from fibers or group of fibers outside the region in the heart muscle ordinarily responsible for impulse formation (i.e., the sinoatrial node). • Conduction other than the SA node • Heart block • Pulmonary fibrosis and gas exchange o If you have pulmonary fibrosis, scarring affects the air sacs in your lungs. The air sacs are supported by the interstitium, a network of supporting tissues. Scarring happens in the gaps between and around the air sacs and limits the amount of oxygen that gets into the blood. • Restrictive pericarditis