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持续性心房纤颤时,二尖瓣口血流频谱特点是(    )

发布时间:2020-11-13

A.A峰大于E峰

B.E峰大于A峰

C.A峰等于E峰

D.A峰消失,呈单峰

E.E峰大于2倍A峰

试卷相关题目

  • 1左心室血栓常见于(    )

    A.左房扩大

    B.肺动脉高压

    C.右室容量负荷过重

    D.心尖部梗死

    E.左室肥厚

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  • 2黏液瘤最常见的发生部位是(    )

    A.左房

    B.右房

    C.左室

    D.右室

    E.下腔静脉入口

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  • 3扩张型心肌病的瓣膜改变可有(    )

    A.二尖瓣出现SAM现象

    B.二尖瓣开放幅度减低,呈“大心腔,小瓣口”改变

    C.二尖瓣开放幅度增大

    D.肺动脉瓣开放幅度增大

    E.主动脉瓣出现SAM现象

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  • 4关于肥厚型心肌病,正确的是(    )

    A.左室流出道内血流速度增快

    B.左心耳处常出现血栓

    C.室壁运动弥漫性减弱

    D.室壁运动幅度增强

    E.主动脉瓣出现SAM现象

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  • 5下列关于肥厚型心肌病的超声诊断,错误的是(    )

    A.梗阻者的左室流出道直径小于20nm

    B.左室后壁与室间隔厚径比值大于1.5

    C.室间隔与左室后壁厚径比值大于1.5

    D.梗阻者出现SAM现象

    E.室间隔肥厚,绝对值常大于1.5cm

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  • 6Which type of arial septal defect is the most common(    )

    A.patent foramen Ovale

    B.sinus venosus

    C.ostium primum

    D.ostium secundum

    E.Lutembacher syndrome

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  • 7Tetralogy of Fallot consists of the followings except(    )

    A.pulmonary valve stenosis

    B.right ventricular hypertrophy

    C.atrial septal defect

    D.ventricular septal defect

    E.right ventricular outflow tract stenosis

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  • 8Which view of the followings is the best for diagnosis of aortic coarctation(    )

    A.subxiphoid view

    B.right parasternal view

    C.apical five chamber view

    D.left parasternal view

    E.suprasternal view

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  • 9In rheumatic mitral stenosis,the common locations of mitral valve fusion lesions are exclusive of(    )

    A.mitral valve commissurae

    B.tip of mitral leaflet

    C.root of mitral leaflet

    D.chordae tendineae

    E.combination of commissurae and chordae tendineae

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  • 10A ruptured aneurysm of the aortic sinus is probably occurred in the following options,choose one of best answer(    )

    A.pericardium

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    C.left atrium

    D.right atrium

    E.right ventricle

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