A Dual-Chamber Pacemaker Is Surgically Placed in a Patient's Chest

question 6

Multiple Choice

A dual-chamber pacemaker is surgically placed in a patient's chest.Wires then carry pulses to the right atrium and the right ventricle.How would the pulses be directed from the pacemaker to the heart?

• A)Only the ventricle would be stimulated.
• B)The ventricle would be stimulated first and then the atrium.
• C)Both the atrium and ventricle would be stimulated simultaneously.
• D)Only the atrium would be stimulateD.
• E)The atrium would be stimulated first and then the ventriclE.

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