NR 507 Pathophysiolgy Midterm

NR 507 Pathophysiolgy Midterm Questions with Correct Answers Latest

2025/2026

S1 - ANSWER First heart sound, closure of mital and tricuspid valves in systole S2 - ANSWER Second heart sound, closure of aortic and pulmonica valves in diastole Preload - ANSWER Diastolic filling with venous blood Contractility - ANSWER Systolic ejection Afterload - ANSWER Resistance to systolic ejection Equation for cardiac output - ANSWER stroke volume x heart rate Sustained tachycardia causes ___ - ANSWER Decreased stroke volume Ischemia, acidosis and cardiomyopathy cause___ - ANSWER Decreased contractility 1 / 2

HTN, pulmonary disease and aortic valve damage cause ___ - ANSWER Increased afterload What is the most immediate effect on afterload? - ANSWER HTN Hemorrhage and decreased volume decreases ___and ___ - ANSWER Preload and afterload Increased preload increases ___ - ANSWER Stroke volume Right sided HF is also called ___ - ANSWER Cor pulmonale Cor pulmonale causes ___ and is caused by ___ - ANSWER Enlargement of RV, pulmonary HTN from chronic lung disease

• causes of lung disease leading to cor pulmonale? - ANSWER COPD,

PE, pulmonary fibrosis, OSA, myasthenia gravis, polio

• causes of heart failure - ANSWER CAD, HTN, cardiomyopathy, faulty

valves

• / 2