Cardiac Conduction System and Understanding ECG, Animation.

The cardiac conduction system consists of the following components: – The sinoatrial node, or SA node, located in the right atrium near the entrance of the superior vena cava. This is the natural pacemaker of the heart. It initiates all heartbeat and determines heart rate. Electrical impulses from the SA node spread throughout both atria and stimulate them to contract. […]

Premature Atrial Contractions (PACs), Animation.

Premature atrial contractions, PACs, are premature heartbeats originating in one of the upper chambers of the heart, the atria. PACs are common among patients with lung disorders, such as chronic obstructive pulmonary disease, COPD, but they also often occur in healthy people. PACs may be caused or worsened by caffeine, alcohol use, and certain medications. Apart from occasional palpitations, PACs […]

Cardiac Cycle – Systole & Diastole – Cardiology

now, today we’ll be talking about the cardiac cycle. and the cardiac cycle we’ll be discussing in two fashions, and one way we will discussing cardiac cycle while I will be doing different diagrams and in second phase, We’ll discuss the cardiac cycle Uhhhhh, When I will be presenting the errands during the cardiac cycle Graphically So first of all,

Cardiac Cycle – Systole & Diastole – Cardiology

now, today we’ll be talking about the cardiac cycle. and the cardiac cycle we’ll be discussing in two fashions, and one way we will discussing cardiac cycle while I will be doing different diagrams and in second phase, We’ll discuss the cardiac cycle Uhhhhh, When I will be presenting the errands during the cardiac cycle Graphically So first of all,

The Cardiac Cycle, Animation

The cardiac cycle refers to the sequence of events that occur and repeat with every heartbeat. It can be divided into two major phases: systole and diastole, each of which subdivides into several smaller phases. Systole and diastole when not specified otherwise refer to ventricular contraction and relaxation, respectively. Reminders: Blood flows from higher to lower pressure. Contraction increases the […]

When to go to the ER for episodes of fainting

– So If you have an episode of fainting it could be a seizure disorder from the brain that would always be abnormal, needs to be worked up. It could be due to electrolyte abnormalities that have caused conduction problems both in your heart or in your brain. You could be dehydrated or low on potassium and low on magnesium […]

Chancroid Infection

This voice-annotated PowerPoint will be about the chancroid infection. I am Sarah Dotters-Katz, an OB/GYN physician. By the end of this VAT, you should have an understanding of the epidemiology and pathogenesis of Chancroid infection. We will also discuss the signs and symptoms of chancroid infection, specifically as well as a differential diagnosis for genital ulcers. Finally, we will review […]