Preload and Afterload Nursing | Stroke Volume, Cardiac Output Explained скачать в хорошем качестве

Preload and Afterload Nursing | Stroke Volume, Cardiac Output Explained

Preload vs. afterload nursing review of stroke volume and cardiac output. What is cardiac preload and afterload? Cardiac preload is the amount the ventricle stretch at the end of diastole. Diastole is the filling or relaxation phase of the cardiac cycle. Preload is the amount of blood volume that fills that ventricle when the filling phase is over. Therefore, it is also called the end-diastolic volume (EDV). Cardiac afterload is the pressure the ventricles must work against to open the semilunar valves so blood can leave the ventricle and enter either the lungs or systemic circulation. Afterload is influenced by vascular resistance, which is either pulmonary (which affects the right ventricle) or systemic vascular resistance (which affects the left ventricle). Preload and afterload play an important role in affecting cardiac output because they influence stroke volume. Cardiac output is the amount of blood pumped by the heart per minute, and it's calculated by the heart rate times the stroke volume. Stroke volume is the amount of blood pumped by a ventricle per beat. The three factors that influence stroke volume are contractility, preload, and afterload. Quiz: https://www.registerednursern.com/pre... Notes: https://www.registerednursern.com/pre... More Cardiac NCLEX Review:    • Cardiac System NCLEX   Nursing Gear: https://teespring.com/stores/register... Facebook:   / registerednurserns   Instagram:   / registerednursern_com   Twitter:   / nursesrn   #preloadafterload #strokevolume #cardiacoutput #cardiacnursing Subscribe: http://www.youtube.com/subscription_c... Nursing School Supplies: http://www.registerednursern.com/the-... Popular Playlists: NCLEX Reviews:    • NCLEX Study Strategies   Fluid & Electrolytes:    • Fluid and Electrolytes Nursing   Nursing Skills:    • Nursing Skills Videos   Nursing School Study Tips:    • Nursing School Study Tips   Nursing School Tips & Questions"    • Nursing School Tips & Questions   Teaching Tutorials:    • Teaching Tutorials   Types of Nursing Specialties:    • Types of Nursing Specialties   Healthcare Salary Information:    • Healthcare Salary Information   New Nurse Tips:    • New Nurse Tips   Nursing Career Help:    • Nursing Career Help   EKG Teaching Tutorials:    • EKG/ECG Interpretation   Dosage & Calculations for Nurses:    • Dosage Calculations Nursing   Diabetes Health Managment:    • Diabetes Health Managment