(Solved) NU621 Advanced Pathophysiology Unit 2 Exam 1 | Homework Solution

NU621 Advanced Pathophysiology Unit 2 Exam 1

1. What is the process that ensures mitral and tricuspid valve closure after the ventricles are filled with blood?  Chordae tendineae relax, which allows the valves to close. Increased pressure in the ventricles pushes the valves to close.  Trabeculaecarneae contract, which pulls the valves closed. Reduced pressure in the atria creates a negative pressure that pulls the valves closed. NU621 Advanced Pathophysiology Unit 2 Exam 1
2. What is an expected change in the cardiovascular system that occurs with aging? Arterial stiffening  Decreased left ventricular wall tension Decreased aortic wall thickness Arteriosclerosis.
3. A patient in the Emergency department is suspected of having a myocardial infarction (MI). The initial cardiac troponin 1 level was negative. What action by the healthcare professional is best? Prepare the patient for thrombolytic therapy. Dismiss the patient because the lab was negative. Schedule repeat lab within a few hours.  Give the patient oxygen and pain medication. NU621 Advanced Pathophysiology Unit 2 Exam 1
4. A healthcare provider is assessing a patient who has a pericardial effusion and notes a pulsusparadoxus. A student asks for an explanation of how this occurs. What description by the professional is best? Diastolic filling pressures of the right ventricle and reduction of blood volume in both ventricles  Blood ejected from the right atrium and reduction of blood volume in the right ventricle Blood ejected from the left atrium and reduction of blood volume in the left ventricle Diastolic filling pressures of the left ventricle and reduction of blood volume in all four heart chambers. NU621 Advanced Pathophysiology Unit 2 Exam 1
5. In systolic heart failure, what effect does the renin-angiotensin-aldosterone system (RAAS) have on stroke volume?  Increases preload and decreases afterload Increases preload and increases afterload  Decreases preload and increases afterload Decreases preload and decreases afterload.
6. Events in the development of atherosclerotic plaque include all the following except:  accumulation of LDL (low-density lipoprotein) cholesterol. smooth muscle proliferation.  calcification. decreased elasticity.
7. The complications of uncontrolled hypertension include all of the following except:  cerebrovascular accidents. renal injury. cardiac hypertrophy. All of the above are complications.
8. Identify the correct sequence of the portions of the pulmonary circulation.  

(1) pulmonary veins (2) pulmonary arteries (3) lungs (4) right ventricle (5) left atrium  1, 5, 3, 2, 4   4, 2, 3, 1, 5  4, 1, 3, 2, 5 5, 2, 3, 1, 4 Get Reproductive Function Homework Help!! NU621 Advanced Pathophysiology Unit 2 Exam 1

9 Primary hypertension: is essentially idiopathic.  can be caused by renal disease. can be caused by hormone imbalance. results from arterial coarctation.

10 Which is a possible cause of varicose veins? gravitational forces on blood Selected Answer – Incorrect long periods of standing trauma to the saphenous veins.