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Author Question: Atrial fibrillation is characterized by _____. a. one P wave before each QRS and a regular ... (Read 52 times)

soccerdreamer_17

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on: Jun 25, 2018
Atrial fibrillation is characterized by _____.
 
  a. one P wave before each QRS and a regular ventricular rate of 60 to 100 beats/min
  b. an erratic, wavy baseline and irregular ventricular rhythm
  c. saw-tooth or picket-fenceshaped waveforms preceding each QRS
  d. P waves occurring before, during, or after the QRS complex; when seen, they are inverted

Question 2

The most common type of supraventricular tachycardia (SVT) is _____.
 
  a. atrial tachycardia
  b. atrial flutter
  c. AV reentrant tachycardia (AVRT)
  d. AV nodal reentrant tachycardia (AVNRT)


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momtoalll

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Reply #1 on: Jun 25, 2018
Answer to Question 1

B
Characteristics of atrial fibrillation:
Rhythm Ventricular rhythm usually irregularly irregular
Rate Atrial rate usually 400 to 600 beats/min; ventricular rate variable
P waves No identifiable P waves, fibrillatory waves present; erratic, wavy baseline
PR interval Not measurable
QRS duration 0.11 seconds or less unless abnormally conducted

Answer to Question 2

D
AVNRT is the most common type of SVT. It is caused by reentry in the area of the AV node.


soccerdreamer_17

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Reply 2 on: Jun 25, 2018
YES! Correct, THANKS for helping me on my review

softEldritch

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Reply 3 on: Yesterday
Gracias!

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