Practical ECG

If leads II, III, and aVF, note the ST-elevation, what would it suggest?

• 1. An inferior myocardial infarction

• 1. A posterior myocardial infarction

• 1. A septal myocardial infarction

• 1. An anterior myocardial infarction

In an ECG taken from a person who has no SA node activity, which component will not appear?

• P wave

• QRS complex

• ST segment

• T wave

During the QT interval of the EKG, the

• 
  atria contract and begin to relax.

• atria relax.

• ventricles contract and begin to relax.

• ventricles relax.

Which of these conditions is most likely to cause bradycardia?

• 
  ectopic action potentials in the atria

• excessive parasympathetic stimulation

• 
  too much coffee

• damage to the tricuspid valve

 Which SINGLE statement regarding Einthoven’s triangle is true?

• AVR, AVL and AVF are bipolar leads

• Lead II gathers information between AVR and AVF

• Lead III gathers information between AVR and AVL

• Leads I, II and III each have one associated electrode

Which of these cannot be detected by an Electrocardiogram?

• 1. The rate and rhythm of Heartbeats

• 1. The size and position of the Heart chambers

• 1. The function of implanted Pacemakers

• 1. Presence of asymptomatic blockages in the atria of the Heart

Which of the following indicates Ventricular Muscle Depolarization?

• 1. P wave

• 1. QRS complex

• 1. T wave

• 1. PR interval

Which of the following waves of ECG represent Repolarization?

• 1. P wave

• 1. QRS complex

• 1. RS wave

• 1. T wave

In which of these conditions can widen QRS and Tall-tented T waves be observed

• 1. Hyponatremia

• 1. Hyperkalemia

• 1. Hyperglycemia

• 1. Hyperphosphatemia

The heartbeat of a person can be determined by which of the following waves?

• 1. P-wave

• 1. QRS complex

• 1. ST-segment

• 1. PQ interval