ECG Challenge: COPD Flare-Up and Irregular Heartbeat
Mar 19, 2024 · The following PR interval ( ) is longer (0.36 sec), and the PR intervals become progressively longer thereafter until there is a nonconducted P wave (↓) after complexes 5 and 11.
Office Consultation 1 - Page 2 - Medscape
Mar 25, 2003 · The prolonged PR interval can occur with either block in the AV node or His-Purkinje system. A normal PR interval in this situation markedly increases the chances for block in the His …
Methadone-associated Q-T Interval Prolongation and Torsades
Introduction Q-T interval prolongation occurs when there is an interruption in the normal balance and flow of ions in the myocardium, increasing the time it takes for repolarization to occur. [1]
ECG Findings Associated With Cocaine Use in Humans - Page 5
The few human studies available (including studies during abstinence from cocaine) indicate that the PR interval remains either unaffected or slightly decreases in the setting of cocaine use, the ...
ECG Challenge: New Beats With a Pacemaker - Medscape
Jul 22, 2024 · After receiving a pacemaker, this heart failure patient has changes to his ECG. Are these new rhythms normal?
ECG Challenge: Abdominal Pain, Diarrhea in Heart Disease Patient
Oct 22, 2020 · The correct diagnosis is sinus rhythm, LVH, and normal T waves (Figure 2). The ECG shows a normal P wave (+) before each QRS complex with a stable and normal PR interval and a …
ECG Challenge: Sudden Palpitations and Shortness of Breath
Jan 6, 2022 · The sixth QRS complex (+) is narrow with a normal morphology and axis. It is preceded by a P wave (^) with a normal PR interval. This is a capture or Dressler complex (beat).
ECG Findings Associated With Cocaine Use in Humans - Page 4
The effects of cocaine on PR interval and QRS complex width described in clinical studies generally contrasted the case report literature in which 11 cases of PR interval prolongation and 22 cases ...
The Telltale Tall R Waves - Page 2 - Medscape
Oct 2, 2018 · The diagnosis is sinus tachycardia, short PR interval (enhanced AV conduction), and Duchenne muscular dystrophy. The rhythm is regular at a rate of 100 beats/min. A P wave occurs …
Occasional Lightheadedness and Concerning ECG - Page 3 - Medscape
May 3, 2024 · This is a stable normal sinus rhythm. Every other P wave is conducted (ie, followed by a QRS complex) and there is a stable PR interval (0.48 sec). A second P wave (*) is nonconducted.