Welcome back to ECG Pointers! This week we examine Torsade de Pointes in detail.

What happens with limb lead reversal on the ECG?

Today we will review the basics of cardiovascular drug effects on the different phases of the action potential.

The patient with acute valvular emergency can be terrifying. These patients may rapidly decompensate, and the physiology and management are complex. What can you do to prepare? This post provides pearls and pitfalls in the evaluation and management of patients with acute valvular emergency. You may be surprised what you read...

Tachypnea is defined as rapid breathing noted on clinical presentation. This finding can signify the presence of a dangerous condition, and this post evaluates the etiologies, evaluation, and management of the tachypneic patient in the ED. Are you missing something with tachypnea in the ED?

Cardiac arrhythmias are not common in pregnancy, but they can occur. While the workup and management is quite similar to the non-pregnant patient, there are subtle differences. This is a brief review of the ED management of unstable and stable tachycardic arrhythmias in pregnancy.

Unstable and symptomatic bradycardias require urgent intervention. This is an overview of bradycardias and how to approach them in the emergency department.

BNP (Brain Natriuretic Peptide) is a commonly used biomarker for detecting heart failure in the emergency department. It's levels can be affected by various extraneous factors such as obesity and renal failure. This article reviews the potential uses of BNP, including its pros and cons, in the emergency department.