Excess fluid between the parietal and pleural layers surrounding the heart restrict the contraction of the heart; early signs of cardiac tamponade may be a narrowing range between systolic and diastolic blood pressures and elevated jugular venous distension.
PericarditisThe presence of ST elevation in most views of a 12 lead ECG suggests pericarditis. Pericarditis, an inflammation to the pericardial lining of the heart often attributed to infection, also produces ST elevation on a 12 lead ECG. In fact,..., an infection within the pericardial sac, can cause increased friction between the inner surfaces of these layers. Chest discomfort is common. A friction rub, a sound similar to that produced by rubbing leather together – may also result. Note also that an accumulation of relatively small amounts of fluid (200 ml) in this pericardial sac – pericardial effusions – can straight jacket the heart’s ability to contract. This condition called cardiac tamponade may result in little or no cardiac outputWhat is it? Why is it Vital? The amount of blood pumped out of the ventricle in a minute (most often refers to the blood pumped by the left ventricle) What is cardiac output? Simply, cardiac output is the amount....
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. 10, 193