Nrsg430 Study guides, Class notes & Summaries

stenosisoccurs when the valve leaflets thicken, stiffen, or fuse together, causing the valve opening to narrow and the valve to not fully open or close, causing resistance of blood flow across the valve (LA before valve has increased afterload) stenosis etiologyrheumatic heart disease, congenital mitral stenosis, rheumatoid arthritis, and systemic lupu erythematosus (SLE) stenosis CMdyspnea on exertion, diastolic murmur, loud S1 sound, hoarseness, hemoptysis, chest pain, increased risk...

Which two valves are open during ventricular systole? aortic and pulmonic Which two valves are closed during ventricular systole? mitral and tricuspid Amount of time systole takes in the cardiac cycle 1/3 of cardiac cycle Amount of time diastole takes in the cardiac cycle 2/3 of cardiac cycle How does activation of the RASS system affect both preload and after load? after load: vasoconstriction preload: sodium and water retention