How does the chronic hypoxemia of COPD

How does the chronic hypoxemia of COPD affect the heart? 7 options: Left heart failure (CHF) There is no related cardiac effect sinus rhythm Right heart failure (cor pulmonale) How does the chronic hypoxemia of COPD affect the heart? 7 options: Left heart failure (CHF) There is no related cardiac effect sinus rhythm Right heart failure (cor pulmonale) 8 (2 points) What is the most common cause of resting hypoxemia? 8 options: Ventilation /perfusion mismatch Ventilation /dead space mismatch Ventilation /permeability mismatch Ventilation/ diffusion mismatch 9 (2 points) Which of the following is a substance that is normally eliminated by the kidneys? 9 options: urea lactic acid glucose cholesterol 10 (2 points) Urine output can be used as a clinical indicator of perfusion adequacy. 10 options: True False 11 (2 points) Positive pressure mechanical ventilation (PPV) tends to decrease atrial filling pressures because it decreases venous blood return to the heart. Predict the effect of high levels of PPV on urine output. 11 options: decreases urine output increases urine output has no effect on urine output 12 (2 points) Cardiac enzymes are elevated following a heart attack due to the death of myocardial cells. 12 options: True False 13 (2 points) Athersclerosis may lead to increased SVR. 13 options: True False 14 (2 points) Hypertension may lead to renal hemorrhages. 14 options: True False 15 (2 points) What is normal pulse pressure for an adult? 15 options: 40 mm Hg 0.8 mm Hg 100 mm Hg 10 mm Hg 16 (2 points) What is the effect of a very high heart rate on stroke volume? 16 options: increases stroke volume decreases stroke volume has no effect on stroke volume 17 (2 points) An increased afterload will ____________ stroke volume. 17 options: increase decrease not effect 18 (2 points) Walking helps to improve the venous blood flow to the heart. 18 options: True False 19 (2 points) Hypovolemia may cause a decreased right atrial pressure. 19 options: True False 20 (2 points) Where do you find the point of maximal impact (PMI) of the heart? 20 options: 21 (2 points) Left ventricular pressure is equal to 120/0 mm Hg. 21 options: True False 22 (2 points) What happens if there is a lack of blood flow in the coronary arteries? 22 options: Paragraph Lato (Recommended) 19px (Default) 23 (2 points) In an ECG, what does an elevated ST segment represent? 23 options: bradycardia myocardial injury atrial depolarization tachycardia 24 (2 points) What does the T wave of an ECG represent? 24 options: atrial depolarization ventricular repolarization atrial repolarization ventricular depolarization 25 (2 points) If the PR interval is increased greater than 0.2 seconds, this may indicate 25 options: Ventricular fibrillation First degree heart block Tachycardia Hyperventilation SCIENCE HEALTH SCIENCE NURSING NURS 3260

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