STEMI standing orders

usually due to trauma or myocardial infarction . Four Chambers: 2 Atria:-superior, thin walls, smooth posterior walls internally, pectinate muscles (ridges) anteriorly-each has expandable flap called an auricle. that can be seen anteriorly between each atrium . and ventricle-left and right separated by interatrial septum. 2 Ventricles: ................
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