EKG Nursing

Introduction Atrial fibrillation is the most common sustained cardiac arrhythmia nurses will encounter, and it shows up everywhere — telemetry floors, the ED, post-op recovery, primary care follow-ups. Because management decisions hinge on a genuine strategic choice between rate control and rhythm control, understanding the difference matters for real clinical practice, not just exam questions. … Read more

Introduction Cardiac implantable electronic devices — pacemakers and implantable cardioverter-defibrillators (ICDs) — are common enough that most nurses will care for a device patient at some point, whether fresh from implantation or years into living with one. Knowing what these devices actually do, what can go wrong, and what patients need to hear before they … Read more

A patient who survives the first hours of a myocardial infarction is not out of danger. Mechanical complications can develop days later, turning a stable post-MI patient into a rapidly decompensating one, and recognizing these complications is a recurring focus on the NCLEX. Every registered nurse working in cardiac step-down or critical care needs a … Read more

A seemingly healthy young athlete collapses during a game. The cause, more often than any other in this population, is hypertrophic cardiomyopathy (HCM) — a genetic heart condition that can go undetected for years. For every nurse preparing for the NCLEX or working on a cardiac unit, understanding hypertrophic cardiomyopathy nursing care is essential, because … Read more

A patient recovering from a myocardial infarction suddenly spikes a fever and complains of sharp, pleuritic chest pain that worsens when lying flat. For the unprepared nurse, this can look like a second heart attack. For the nurse who understands Dressler syndrome nursing care, it’s a recognizable pattern with a clear response plan. This delayed … Read more

Temperature dysregulation can devastate cardiac conduction. Whether a patient arrives hypothermic from cold exposure or hyperthermic from heat stroke, the heart’s electrical system reflects the physiological stress — and an RN nurse who recognizes those changes on an ECG can make life-saving decisions faster. For nursing students and registered nurses preparing for the NCLEX, mastering … Read more

T-wave inversions are one of the most frequently misunderstood findings on an electrocardiogram — and for good reason. The T-wave represents ventricular repolarization, and when it dips below the isoelectric line, it signals a change in the electrical recovery of the heart muscle. Every registered nurse working in cardiology, telemetry, the ICU, or the emergency … Read more

Misreading an ECG in a cardiac emergency can be fatal. For any registered nurse working in a high-acuity setting, distinguishing pericarditis from a ST-Elevation Myocardial Infarction (STEMI) on a 12-lead ECG is one of the most clinically consequential skills in the profession. Both conditions produce ST-segment elevation — yet the underlying pathology, distribution of changes, … Read more

When a 12-lead EKG lands on the nursing station with unexpectedly small complexes, recognizing low voltage QRS is a high-stakes skill. In fact, this EKG finding is not simply a technical artifact — rather, it carries significant diagnostic weight in both critical care and medical-surgical settings. Therefore, for nursing students preparing for the NCLEX and … Read more

Ischemia does not always announce itself with the dramatic ST elevation that nurses are trained to identify first. Subendocardial ischemia — injury confined to the innermost layer of the myocardium — produces a quieter but equally dangerous EKG signature, and missing it costs lives. For every registered nurse working in a cardiac, telemetry, or critical … Read more