NRS 410V QUIZ 2 Latest Questions and Answers

Date: 11/22/15 Total Score: 96 % 1 CATEGORY anatomy QUESTION Backward effects of left-sided heart failure include: CORRECT ANSWER A) Pulmonary congestion YOUR ANSWER A) Pulmonary congestion Deoxygenated blood from the right ventricle flows through the right and left pulmonary arteries to the right and left lung. After entering the lungs, the branches subdivide, finally emerging as capillaries which surround the alveoli and release the carbon dioxide in exchange for oxygen. RATIONALE The capillaries unite gradually and assume the characteristics of veins. These veins join to form the pulmonary veins, which return the oxygenated blood to the left atrium. Backflow of blood through the left atrium result in left-sided heart failure. 2 CATEGORY anatomy Oxygen saturation is likely to be lowest when an asthmatic with a diagnosis of pneumonia is QUESTION positioned: CORRECT ANSWER C) Lying on the right side YOUR ANSWER C) Lying on the right side Ventilation and perfusion distribute to the dependent lung fields. In a patient with pneumonia in the right lung, positioning with the right lung down would send more blood flow to the RATIONALE consolidated, nonventilated areas of the lung and produce a worse V/Q mismatch, which would decrease oxygen diffusion into the blood and produce a lower arterial oxygen saturation. 3 CATEGORY anatomy In performing a physical assessment, the nurse notes the patient has a “barrel― QUESTION configuration to the chest. This is a consequence of: CORRECT ANSWER D) Increased residual lung volume YOUR ANSWER D) Increased residual lung volume Emphysema typically produces a barrel –shaped chest with an increased anterior-posterior RATIONALE dimension. This is a result of loss of lung parenchyma resulting in reduced elastic recoil and increased residual volume and functional residual capacity.