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AAMA Electrocardiography and Diagnostic Testing Flashcards

6 cards from real AAMA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 AAMA Electrocardiography and Diagnostic Testing flashcards as text

  1. How many electrodes are placed on a patient for a standard 12-lead ECG?

    Answer: 10 electrodes

    A 12-lead ECG uses 10 electrodes (4 limb and 6 precordial) to produce 12 different views of the heart's electrical activity.

  2. Which ECG wave represents ventricular depolarization?

    Answer: QRS complex

    The QRS complex represents the electrical depolarization of the ventricles, which triggers ventricular contraction.

  3. What artifact on an ECG is caused by patient movement or shivering?

    Answer: Somatic tremor artifact

    Somatic tremor artifact appears as irregular, erratic baseline variation caused by voluntary or involuntary patient muscle movement.

  4. The PR interval on an ECG represents:

    Answer: The time for an impulse to travel from the SA node through the AV node

    The PR interval measures the time from the start of atrial depolarization (P wave) through the AV node delay to the start of ventricular depolarization.

  5. Which precordial lead is placed at the fourth intercostal space, right sternal border?

    Answer: V1

    V1 is positioned at the fourth intercostal space on the right sternal border, and V2 is at the same level on the left sternal border.

  6. Normal sinus rhythm on an ECG is characterized by a rate of:

    Answer: 60–100 beats per minute

    Normal sinus rhythm is defined as a regular rhythm originating from the SA node with a rate between 60 and 100 beats per minute.