3. Basics of the 12-Lead EKG
Self-study learning goals Identify and describe the following: Five critical electrical and mechanical functions. Five parts of the heart’s electrical system. SA node. P wave. AV node. Bundle of His. Right and left bundle branches. Purkinje fibers. QRS complex. The heart has an intricate electrical system, made up of highly specialized cells, that is responsible […]
2. Physiology Review of the Heart’s Conduction System
Self-study learning goals Identify and describe the following: The six limb leads The six precordial leads The time lines on EKG paper A 0.04 second time interval A 0.20 second time interval The EKG baseline A positive wave A negative wave Measurement of wave amplitude Standardization of the EKG In 1913, Wilhelm Einthoven contributed significantly […]
1. Anatomy Review of the Human Heart
Self-study learning goals Define and identify the following: Pericardium Myocardium Epicardium Circulation Origin and path of the right coronary artery Origin and path of the left coronary artery Branches of the left coronary artery Blood supply to the right ventricle Blood supply to the AV node Blood supply to the septum, anterior wall, lateral walls, […]
I. Overview of Heart Function and the EKG
In this material
V. Ischemic Disorders Review
These worksheets are for self-study only. Answers will not be evaluated. Instructions and examples Instructions for this review Complete basic measurements. Do all previous work. Note if inverted T waves or ST segment depression is present in two or more leads that represent a pattern in Table 13.2. Here the ST segments are diffusely abnormal. […]
Prolonged Arterial Occlusion Worksheets
These worksheets are for self-study only. Answers will not be evaluated. Instructions and examples Instructions for Chapter 15 Worksheets Complete basic measurements. Note if inverted T waves or ST segment depression is present. Note the presence of Q waves or Q wave equivalents as described in columns A, B, and E in Figure 15.12. Diagnose […]
Totally Occluded Artery Worksheets
These worksheets are for self-study only. Answers will not be evaluated. Instructions and examples Instructions for Chapter 14 Worksheets Complete basic measurements. Note if ST elevation is present in two or more leads that represent a pattern in Table 14.1. Describe this as ST elevation MI (STEMI) and note the location. In addition, Rule Three […]
Totally Occluded Artery Case Studies
Case 1: Inferior STEMI: Syndrome of RCA occlusion Tap the arrow to view the case.EKG: The ST segment is positive in leads III and AVF (Figure 14.10).Visualization: The ST is pointing to the patient’s right side, which is toward the inferior wall (Figure 14.11).Critical Thinking: Since the ST segment is pointing toward the inferior wall […]
15. Prolonged Arterial Occlusion: Q Waves and Equivalents
In this material Self-study learning goals Define and Identify the following: Start of the QRS. Normal direction of the start of the QRS. Define and identify an abnormal Q wave. Define and identify an abnormal Q wave equivalent. Describe an approach to the timing of Q waves as acute, recent, or old. Define and identify […]
14. Totally Occluded Artery: ST Elevation MI
In this material Self-study learning goals Define and identify the following: Normal ST segment. Normal ST segment amplitude. Define the two EKG criteria for abnormal ST segment elevation. List four clinical causes of ST elevation. Describe the expected EKG changes in ST elevation MI (STEMI). Describe the pathophysiology of STEMI. Define the Third Rule of […]