PVC Characteristics and Visual Indicators Quiz

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What does negative deflection indicate in an ECG?

The electrical impulse is moving from positive toward negative.

List some substances that can impact cardiac function.

Illicit drugs, ADHD medications, alcohol, tobacco, and caffeine.

Name some conditions that can lead to altered conduction pathways in the heart.

Cardiomyopathy, Mitral Valve Prolapse, MI, any structural heart disease.

What is the general approach to treating asymptomatic PVCs?

Patients rarely require treatment. Signup and view all the answers

What is the recommended treatment for hypoxic patients experiencing PVCs?

Oxygen. Signup and view all the answers

How should electrolyte imbalances in patients with PVCs be managed?

Corrected. Signup and view all the answers

What should be ruled out in patients presenting with frequent PVCs?

Drug toxicity and acute MI. Signup and view all the answers

If medications are unsuccessful in treating PVCs, what could be considered?

Radiofrequency catheter ablation. Signup and view all the answers

What are the two major characteristics used to name PVCs?

Site of Origin and Visual Indicators Signup and view all the answers

What is the difference between unifocal and multifocal PVCs?

Unifocal PVCs originate from the same site and look identical, while multifocal PVCs originate from different sites and look different from each other. Signup and view all the answers

What is the frequency of occurrence for a PVC that happens every 2 beats?

Bigeminy Signup and view all the answers

Define NSVT in terms of PVCs.

Non-sustained Ventricular Tachycardia: 3 or more consecutive PVCs for less than 30 seconds. Signup and view all the answers

What does V-Tach stand for and how is it defined in terms of PVCs?

Ventricular Tachycardia: 3 or more consecutive PVCs for more than 30 seconds. Signup and view all the answers

What is the visual indicator that can be observed in PVCs related to electrolyte abnormalities?

Broad QRS complex ≥120 milliseconds with abnormal morphology Signup and view all the answers

Name one possible cause of PVCs related to hyperactivity of the SNS.

Increase in SNS “fight or flight” with Epinephrine or norepinephrine activity on Beta Adrenergic receptors. Signup and view all the answers