Clinical Guidelines in Primary CareTestbank/Study GuideChapter 1 Cardiovascular DisordersMULTIPLECHOICE1.The nurse is aware that the muscle layer of the heart, which is responsible for the heartscontraction, is the:a.endocardium.b.pericardium.c.mediastinum.d.myocardium.ANS: DThe myocardium is the specialized muscle layer that allows the heart to contract.2.The nurse clarifies that the master pacemaker of the heart is the:a.left ventricle.b.atrioventricular (AV) node.c.sinoatrial (SA) node.d.bundle of His.ANS: CThe SA node is the master pacemaker of the heart.3.The nurse is aware that the symptoms of an impending myocardial infarction (MI) differ inwomen because acute chest pain isnot present. Women are frequently misdiagnosed as having:a.hepatitis A.b.indigestion.c.urinary infection.d.menopausal complications.Preview Mode
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