Mod. 9 EKG Review

Electrocardiogram; records electrical activity of the heart, including waveforms, intervals, and segments.

• EKG

• Semi-Fowler's position

• U wave

• Gain

Represents atrial depolarization and contraction on the EKG.

• Telemetry

• Positive deflection

• ventricular tachycardia

• P wave

Represents ventricular depolarization and contraction on the EKG.

• Dyspnea

• AC interference

• Premature ventricular contractions (PVCs)

• QRS wave

Represents ventricular repolarization and relaxation on the EKG.

• Negative deflection

• T wave

• Wandering baseline

• Sinus tachycardia

Represents repolarization of the bundle of His and Purkinje fibers on the EKG.

• Syncope

• U wave

• ventricular tachycardia

• Self-calibrating

Time from the beginning of atrial depolarization to the beginning of ventricular depolarization on the EKG.

• Somatic tremor

• premature atrial contractions

• PR interval

• Sinus dysrhythmias

Time from the beginning of ventricular depolarization to the end of ventricular repolarization on the EKG.

• QT interval

• Gain

• Holter monitoring

• Premature atrial contractions (PACs)

Time from the end of ventricular depolarization to the beginning of ventricular repolarization on the EKG.

• Electrocardiogram

• ST segment

• EKG Tracing

• Atrial flutter

Normal rhythms originating from the sinoatrial (SA) node, characterized by one P wave for each QRS interval on the EKG.

• Medical Assistant (MA)

• Precordial Leads

• Sinus rhythms

• Sinus bradycardia

Arise from SA node firing irregularities, resulting in slight irregularity in QRS complexes on the EKG.

• Supine Position

• Ventricular fibrillation

• Premature atrial contractions (PACs)

• Sinus dysrhythmias