NR 507 Pathophysiolgy Midterm Questions with Correct Answers Latest 2025/2026

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

, 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



5 causes of lung disease leading to cor pulmonale? - ANSWER COPD,
PE, pulmonary fibrosis, OSA, myasthenia gravis, polio



4 causes of heart failure - ANSWER CAD, HTN, cardiomyopathy, faulty
valves