Qrs duration

• • All Nursing Care Plans • All Nursing Diagnosis • • • • • • • • • • • • • • • • • • All Nursing Test Banks • NCLEX-RN Practice Questions • NCLEX-PN Practice Questions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • All Career Guides & Tips • • • • • • • • • • All NurseLife Articles • • • Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion. One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart’s electrical activity as waveforms. An EKG uses electrodes attached to the skin to detect electric currents moving through the heart. These signals are transmitted to produce a record of cardiac activity. Sinus tachycardia is a heart rate greater than 100 beats per minute originating from the sinus node. • Rate: 100 to 180 beats per minute • P Waves precede each QRS complex • PR interval is normal • QRS complex is normal • Conduction is normal • Rhythm is regular Causes of sinus tachycardia may include exercise, Sinus Bradycardia Sinus bradycardia is a heart rate of less than 60 beats per minute and originates from the sinus node (as the term “sinus” refers to the sinoatrial node). It has the following characteristics • Rate is less than 60 beats per minute • P Waves precede each QRS complex • PR interval is normal • QRS complex is normal • Conduction is normal • Rhythm is regular Causes may include drugs, vagal stimulation, hypoendocrine states...

WikiDoc Resources for QRS complex Articles Media Evidence Based Medicine Clinical Trials Guidelines / Policies / Govt Books News Commentary Definitions Patient Resources / Community Healthcare Provider Resources Continuing Medical Education (CME) International Business Experimental / Informatics Editor-In-Chief: Associate Editor-In-Chief: Synonyms and keywords: QRS interval Contents • 1 Overview • 2 Morphology of the QRS Complex • 2.1 Q Wave • 2.2 Pathological Q Wave • 2.2.1 Causes of Q Waves in the Absence of Myocardial Infarction • 2.2.2 Conditions that Mask Q waves in the Presence of Myocardial Infarction • 2.2.2.1 LBBB • 2.2.2.2 Ventricular Paced Rhythm (VPR) • 2.2.2.3 Wolff-Parkinson-White (WPW) Pattern/Syndrome • 2.2.3 EKG Changes of Prior Myocardial Infarction • 2.3 R wave • 2.3.1 Tall R waves in V1 • 2.4 S wave • 3 QRS Duration • 3.1 Causes of a Wide QRS Interval or a Prolonged QRS Interval • 4 QRS Amplitude • 4.1 Definitions of Low QRS Voltage: • 4.2 Pathophysiology of Low QRS Voltage • 4.3 Causes of Low QRS Voltage • 4.4 Definition of Maximal QRS Voltage: • 5 References • 6 Examples Overview The QRS complex represents electrical activation of the ventricle. Widening of the QRS complex may reflect delayed conduction in the His, bundle branch or purkinje conduction system. Morphology of the QRS Complex Q Wave If the first deflection of the QRS is downward, it’s called a Q wave. The Q wave represents activation of the ventricular septum. The electricity spreads from...

WikiDoc Resources for QRS complex Articles Media Evidence Based Medicine Clinical Trials Guidelines / Policies / Govt Books News Commentary Definitions Patient Resources / Community Healthcare Provider Resources Continuing Medical Education (CME) International Business Experimental / Informatics Editor-In-Chief: Associate Editor-In-Chief: Synonyms and keywords: QRS interval Contents • 1 Overview • 2 Morphology of the QRS Complex • 2.1 Q Wave • 2.2 Pathological Q Wave • 2.2.1 Causes of Q Waves in the Absence of Myocardial Infarction • 2.2.2 Conditions that Mask Q waves in the Presence of Myocardial Infarction • 2.2.2.1 LBBB • 2.2.2.2 Ventricular Paced Rhythm (VPR) • 2.2.2.3 Wolff-Parkinson-White (WPW) Pattern/Syndrome • 2.2.3 EKG Changes of Prior Myocardial Infarction • 2.3 R wave • 2.3.1 Tall R waves in V1 • 2.4 S wave • 3 QRS Duration • 3.1 Causes of a Wide QRS Interval or a Prolonged QRS Interval • 4 QRS Amplitude • 4.1 Definitions of Low QRS Voltage: • 4.2 Pathophysiology of Low QRS Voltage • 4.3 Causes of Low QRS Voltage • 4.4 Definition of Maximal QRS Voltage: • 5 References • 6 Examples Overview The QRS complex represents electrical activation of the ventricle. Widening of the QRS complex may reflect delayed conduction in the His, bundle branch or purkinje conduction system. Morphology of the QRS Complex Q Wave If the first deflection of the QRS is downward, it’s called a Q wave. The Q wave represents activation of the ventricular septum. The electricity spreads from...

• • All Nursing Care Plans • All Nursing Diagnosis • • • • • • • • • • • • • • • • • • All Nursing Test Banks • NCLEX-RN Practice Questions • NCLEX-PN Practice Questions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • All Career Guides & Tips • • • • • • • • • • All NurseLife Articles • • • Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion. One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart’s electrical activity as waveforms. An EKG uses electrodes attached to the skin to detect electric currents moving through the heart. These signals are transmitted to produce a record of cardiac activity. Sinus tachycardia is a heart rate greater than 100 beats per minute originating from the sinus node. • Rate: 100 to 180 beats per minute • P Waves precede each QRS complex • PR interval is normal • QRS complex is normal • Conduction is normal • Rhythm is regular Causes of sinus tachycardia may include exercise, Sinus Bradycardia Sinus bradycardia is a heart rate of less than 60 beats per minute and originates from the sinus node (as the term “sinus” refers to the sinoatrial node). It has the following characteristics • Rate is less than 60 beats per minute • P Waves precede each QRS complex • PR interval is normal • QRS complex is normal • Conduction is normal • Rhythm is regular Causes may include drugs, vagal stimulation, hypoendocrine states...

• • All Nursing Care Plans • All Nursing Diagnosis • • • • • • • • • • • • • • • • • • All Nursing Test Banks • NCLEX-RN Practice Questions • NCLEX-PN Practice Questions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • All Career Guides & Tips • • • • • • • • • • All NurseLife Articles • • • Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion. One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart’s electrical activity as waveforms. An EKG uses electrodes attached to the skin to detect electric currents moving through the heart. These signals are transmitted to produce a record of cardiac activity. Sinus tachycardia is a heart rate greater than 100 beats per minute originating from the sinus node. • Rate: 100 to 180 beats per minute • P Waves precede each QRS complex • PR interval is normal • QRS complex is normal • Conduction is normal • Rhythm is regular Causes of sinus tachycardia may include exercise, Sinus Bradycardia Sinus bradycardia is a heart rate of less than 60 beats per minute and originates from the sinus node (as the term “sinus” refers to the sinoatrial node). It has the following characteristics • Rate is less than 60 beats per minute • P Waves precede each QRS complex • PR interval is normal • QRS complex is normal • Conduction is normal • Rhythm is regular Causes may include drugs, vagal stimulation, hypoendocrine states...

WikiDoc Resources for QRS complex Articles Media Evidence Based Medicine Clinical Trials Guidelines / Policies / Govt Books News Commentary Definitions Patient Resources / Community Healthcare Provider Resources Continuing Medical Education (CME) International Business Experimental / Informatics Editor-In-Chief: Associate Editor-In-Chief: Synonyms and keywords: QRS interval Contents • 1 Overview • 2 Morphology of the QRS Complex • 2.1 Q Wave • 2.2 Pathological Q Wave • 2.2.1 Causes of Q Waves in the Absence of Myocardial Infarction • 2.2.2 Conditions that Mask Q waves in the Presence of Myocardial Infarction • 2.2.2.1 LBBB • 2.2.2.2 Ventricular Paced Rhythm (VPR) • 2.2.2.3 Wolff-Parkinson-White (WPW) Pattern/Syndrome • 2.2.3 EKG Changes of Prior Myocardial Infarction • 2.3 R wave • 2.3.1 Tall R waves in V1 • 2.4 S wave • 3 QRS Duration • 3.1 Causes of a Wide QRS Interval or a Prolonged QRS Interval • 4 QRS Amplitude • 4.1 Definitions of Low QRS Voltage: • 4.2 Pathophysiology of Low QRS Voltage • 4.3 Causes of Low QRS Voltage • 4.4 Definition of Maximal QRS Voltage: • 5 References • 6 Examples Overview The QRS complex represents electrical activation of the ventricle. Widening of the QRS complex may reflect delayed conduction in the His, bundle branch or purkinje conduction system. Morphology of the QRS Complex Q Wave If the first deflection of the QRS is downward, it’s called a Q wave. The Q wave represents activation of the ventricular septum. The electricity spreads from...

• • All Nursing Care Plans • All Nursing Diagnosis • • • • • • • • • • • • • • • • • • All Nursing Test Banks • NCLEX-RN Practice Questions • NCLEX-PN Practice Questions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • All Career Guides & Tips • • • • • • • • • • All NurseLife Articles • • • Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion. One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart’s electrical activity as waveforms. An EKG uses electrodes attached to the skin to detect electric currents moving through the heart. These signals are transmitted to produce a record of cardiac activity. Sinus tachycardia is a heart rate greater than 100 beats per minute originating from the sinus node. • Rate: 100 to 180 beats per minute • P Waves precede each QRS complex • PR interval is normal • QRS complex is normal • Conduction is normal • Rhythm is regular Causes of sinus tachycardia may include exercise, Sinus Bradycardia Sinus bradycardia is a heart rate of less than 60 beats per minute and originates from the sinus node (as the term “sinus” refers to the sinoatrial node). It has the following characteristics • Rate is less than 60 beats per minute • P Waves precede each QRS complex • PR interval is normal • QRS complex is normal • Conduction is normal • Rhythm is regular Causes may include drugs, vagal stimulation, hypoendocrine states...

WikiDoc Resources for QRS complex Articles Media Evidence Based Medicine Clinical Trials Guidelines / Policies / Govt Books News Commentary Definitions Patient Resources / Community Healthcare Provider Resources Continuing Medical Education (CME) International Business Experimental / Informatics Editor-In-Chief: Associate Editor-In-Chief: Synonyms and keywords: QRS interval Contents • 1 Overview • 2 Morphology of the QRS Complex • 2.1 Q Wave • 2.2 Pathological Q Wave • 2.2.1 Causes of Q Waves in the Absence of Myocardial Infarction • 2.2.2 Conditions that Mask Q waves in the Presence of Myocardial Infarction • 2.2.2.1 LBBB • 2.2.2.2 Ventricular Paced Rhythm (VPR) • 2.2.2.3 Wolff-Parkinson-White (WPW) Pattern/Syndrome • 2.2.3 EKG Changes of Prior Myocardial Infarction • 2.3 R wave • 2.3.1 Tall R waves in V1 • 2.4 S wave • 3 QRS Duration • 3.1 Causes of a Wide QRS Interval or a Prolonged QRS Interval • 4 QRS Amplitude • 4.1 Definitions of Low QRS Voltage: • 4.2 Pathophysiology of Low QRS Voltage • 4.3 Causes of Low QRS Voltage • 4.4 Definition of Maximal QRS Voltage: • 5 References • 6 Examples Overview The QRS complex represents electrical activation of the ventricle. Widening of the QRS complex may reflect delayed conduction in the His, bundle branch or purkinje conduction system. Morphology of the QRS Complex Q Wave If the first deflection of the QRS is downward, it’s called a Q wave. The Q wave represents activation of the ventricular septum. The electricity spreads from...