ECGs and Their Characteristics

This set of flashcards covers key concepts related to ECGs, including sinus rhythm characteristics, intervals representing heart activity, and specific steps for ECG acquisition.

Normal Sinus Rhythm

The characteristic heart rhythm where electrical impulses originate from the sinoatrial nodes, exhibiting specific rate and rhythm.

Ventricular Depolarization and Repolarization Interval

Represented by the QT interval in an ECG.

Role of the P Wave

Indicates atrial depolarization, which is the electrical activation of the atria.

Steps for Obtaining an ECG

Involves preparing the patient, applying electrodes, and ensuring a proper connection to the ECG machine.

Location of T Wave

Identified after the QRS complex in the ECG, representing ventricular repolarization.

Location of P Wave

Identified at the beginning of the ECG cycle, preceding the QRS complex.

ECG Changes in Hypokalemia

Includes peaked P waves, prolonged QT interval, and U waves.