NURS 101 Exam 3: (Ch. 22, 29, 31, 32, 36, 38, 42) Complete Solution: Questions & Answers: Updated

What is the purpose of the SA Node? (Ans- pacemaker of the heart What is the purpose of the AV Node? (Ans- Slows the electrical impulse allowing the ventricles to fill Coronary Artery Disease (CAD) (Ans- coronary arteries are narrowed, limiting blood supply/oxygen/nutrients to heart Myocardial Infarction (MI) (Ans- heart attack; blockage of blood flow to the heart Heart Failure (Ans- condition in which there is an inability of the heart to pump enough blood through the body to supply the tissues and organs with nutrients and oxygenCOPD (Ans- chronic obstructive pulmonary disease; general term for impaired airflow to lungs Bronchitis (Ans- constriction of the bronchioles leading to SOB and wheezing Pneumonia (Ans- fluid filling the lower alveoli causing severe cough and crackles upon auscultation Asthma (Ans- episodes of breathing difficulty (wheezing) due to airway constriction Atelectasis (Ans- collapsed lung; incomplete expansion of alveoli Pleural Effusion (Ans- abnormal accumulation of fluid in the pleural space; diminished lung sounds upon auscultterm-40ation