ECG 2

which is the neutral electrode in ECG?

• Left arm electrode
• Right leg electrode
• Right arm electrode
• Left leg electrode

--- --- -- in ECG represent the time for ventricles to pump the blood to the lung and the body

• ST segment
• T wave
• QRS complex
• P wave

one large square in ECG is equal to

• 0.5 seconds
• 0.3 seconds
• 0.2 seconds
• 0.1 seconds

The speed of the standard ECG paper is --- mm/sec

• 50 mm/sec

• 20 mm/sec

• 300 mm/sec

• 25 mm/sec

In a regular sinus rhythm pattern, if the large squares between R - R interval in ECG strip is 4,then the calculated heart rate is

• 90
• 100
• 60
• 75

In an irregular sinus rhythm pattern, if the number of R waves over a 10 second period is 15,then the calculated heart rate

• 90
• 110
• 75
• 100

This component of the hearts conduction system ------ can spontaneously generate electrical impulses

• Bundle of His
• Purkinje fibers
• AV node
• SA node

Tall peaked T wave in ECG represent this electrolyte abnormality

• Hyperkalemia
• Hypocalcemia
• Hypernatremia
• Hypokalemia

When ST segment is abnormally low below the baseline, the following are usually the causes except

• side effect of digoxin

• Myocardial Ischaemia

• Mitral valve prolapse

• Hyperkalemia

Choose the false statement or treatment option for the given ECG pattern

• ST segment elevation

• need to administer thrombolytic therapy stat

• administer calcium antagonists, nifedipine (Adalat) stat

• suggestive of myocardial infarction.