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选择每一试题中的最佳答案,完试后,可参阅题后所附的正确答案和解释。1.40岁,女性,主诉易疲劳和进行性气促。体格检查和 X 线透视显示心脏增大及肺血管突出。心导管检查时,自肺总动脉注入心脏绿(indocyanine green)染料,并从主动脉抽取血标本。图①为动脉血染料稀释曲线。该曲线提示患者有:
Select the best answer in each question, after the test, you can refer to the questions attached to the correct answer and explanation. 1.40 years old, female, chief complaint of fatigue and progressive shortness of breath. Physical examination and X-ray showed cardiac enlargement and pulmonary vascular protrusion. During cardiac catheterization, indocyanine green dye is injected from the common pulmonary artery and blood samples are taken from the aorta. Figure ① arterial blood dye dilution curve. The curve prompts patients are: