Medscape

ECG Challenge: What's Behind Her Slow Pulse?

The rhythm is irregular, but the long intervals are the same (↔) and the short intervals (┌┐) are the same. One premature QRS complex (↑) is observed. Therefore, the rhythm is regularly irregular. The ...
Medscape

What Patterns Are Apparent in This ECG?

The rhythm is irregularly irregular, with an average rate of 90 beats/min. There is no evidence of any organized atrial activity. Hence, the underlying rhythm is atrial fibrillation. There are two QRS ...
Pulse

ECG quiz: What do these traces of palpitations indicate?

The QRS complex is positive in lead I and negative in lead II and also negative in lead aVF – indicating left axis deviation TIP When you see RBBB always look for 1 st degree heart block and/or left ...
Healio

Low Voltage ECG Review

Low voltage on the ECG is defined as a peak-to-peak QRS amplitude of less than 5 millimeters in the limb leads and/or less than 10 millimeters in the precordial leads. Note: If the gain indicated at ...
Monthly Prescribing Reference

Increased QRS Duration on ECG Tied to Cardiovascular Mortality

Choice of Psoriasis Treatment Affects CVD Event Rates Increased QRS duration on electrocardiogram (ECG) is an independent predictor of cardiovascular mortality. (HealthDay News) – Increased QRS ...
Monthly Prescribing Reference

QRS Width on ECG Linked to Sudden Cardiac Arrest in CAD

QRS Width on ECG Linked to Sudden Cardiac Arrest in CAD For patients with coronary artery disease (CAD), QRS width on electrocardiogram and echocardiographic evidence of heart failure are associated ...
Healio

First-Degree Atrioventricular (AV) Block ECG Review

A first-degree atrioventricular node block occurs when conduction through the AV node is slowed, thereby delaying the time it takes for the action potential to travel from the sinoatrial node through ...