Author Question: A macroreentrant circuit is one that involves a small area of heart tissue, usually a few ... (Read 26 times)

newyorker26 · **on:** Jun 25, 2018

A macroreentrant circuit is one that involves a small area of heart tissue, usually a few centimeters or less.

Indicate whether the statement is true or false

Question 2

Multifocal atrial tachycardia is another name for atrial fibrillation.

Indicate whether the statement is true or false

coyin · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

F
Macroreentry circuits and microreentry circuits are two main types of reentry circuits. If the reentry circuit involves conduction through a large area of the heart, such as the entire right or left atrium, it is called a macroreentry circuit. A reentry circuit involving conduction within a small area is called a microreentry circuit.

Answer to Question 2

F
When a wandering atrial pacemaker rhythm is associated with a ventricular rate of more than 100 beats/min, the dysrhythmia is called multifocal atrial tachycardia (MAT) or chaotic atrial tachycardia.