Since an inferior MI could involve either the left or right ventricleThe right ventricle ejects blood through the main branches of the left and right pulmonary arteries to the lungs. The chambers of the heart are the main drivers within an intricate pathway, delivering blood to the lungs for gas exchange... (seldom both), a 15/18 lead ECGElectrocardiogram; also called an EKG; a representation of electrical voltage measured across the chest over a period of time. 1. Six Second ECG Guidebook (2012), T Barill, p. 196 is warranted to help differentiate. The evidence of ST evidence in V4R, for example, would clarify the diagnosis of a right ventricular infarctionThe necrosis of tissue; acute myocardial infarction involves the acute death of myocardial cells. 1. Six Second ECG Guidebook (2012), T Barill, p. 198. Hemodynamic management of a right-sided MI is quite distinct from a left-sided MI. Overabundant preloadTechnically the end-diastolic pressure of either the left or right ventricles; simplified as the blood volume supplied to the left or right ventricles; note that the more volume or preload, the greater the myocardial stretch and forceful the contraction; increased... is common with a left-sided MI (treat with nitroglycerin and morphine for example) whereas insufficient preload is often an issue with a right-sided MI (treat with a fluid bolus if blood pressure is low).
1. Six Second ECG GuidebookA Practice Guide to Basic and 12 Lead ECG Interpretation, written by Tracy Barill, 2012 Introduction The ability to correctly interpret an electrocardiogram (ECG), be it a simple six second strip or a 12 lead ECG, is a vital skill... (2012), T Barill, p. 150