Author

Cynthia Petersen

Cynthia Petersen is a cardiac telemetry nurse on a hospital step-down floor. For 14 years she has monitored central telemetry screens and interpreted abnormal rhythms, often training recent nursing graduates on bedside recognition of cardiac changes. Petersen started her career on general medical wards and later attended the University of South Carolina, where she received her bachelor of science in nursing.

Can Stress Cause Bradycardia (A Slow Heart Rate)?Heart & Lungs
What Is the Best Beta Blocker for PVCs?Drugs
Why Do I Get PVCs After Eating? Causes & Triggers Heart & Lungs
Why Does My Heart Beat Faster When I Lay Down?Heart & Lungs
Should I Go to Urgent Care for Heart Palpitations?Heart & Lungs
What Is the Difference Between AFib and Tachycardia?Heart & Lungs
Are Atrial Couplets Dangerous? When to Be Concerned Heart & Lungs
What Does Bradycardia Feel Like and When to Worry Heart & Lungs
How Many PVCs Are Normal in 24 Hours?Heart & Lungs
What Is a Ventricular Couplet and Is It Dangerous?Heart & Lungs
Can You Use an Inhaler If You Have Afib?Heart & Lungs
What Causes Premature Ventricular Contractions at Night?Heart & Lungs
Is 39 BPM Too Low for a Heart Rate When Sleeping?Heart & Lungs
What Do PVCs Look Like on an EKG?Tests
How to Calculate a Pulse Deficit and What It Means Tests
Why Does My Afib Only Happen at Night?Heart & Lungs
What Does Atrial Fibrillation Look Like on an ECG?Tests
What Can a Heart Monitor Detect?Tests
What Is an RR Interval and Why Is It Important?Tests
What Does AFib Look Like on a Pulse Oximeter?Tests
What Is the QRS Complex and What Does It Indicate?Tests
What Is Normal Sinus Rhythm With Sinus Arrhythmia?Heart & Lungs
What Is a Normal Atrial Rate & When to Be Concerned?Heart & Lungs
Does Atrial Fibrillation Ever Go Away Completely?Heart & Lungs
ECG Abnormalities: Types, Causes, and Next Steps Tests
How Long Can Heart Palpitations Last: Seconds to Days Heart & Lungs
My Pulse Is 100 BPM: Causes and When to Act Heart & Lungs
What Does Bigeminy Mean? Causes, Symptoms & Treatment Heart & Lungs
Are PVCs the Same as Palpitations?Heart & Lungs
How Does a Normal EKG Look? A Visual Breakdown Tests