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Author Question: In 2:1 AV block, the PR interval _____. a. shortens b. lengthens c. is absent d. remains ... (Read 60 times)

drink

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on: Jun 25, 2018
In 2:1 AV block, the PR interval _____.
 
  a. shortens
  b. lengthens
  c. is absent
  d. remains constant

Question 2

The _____ are the heart chambers that receive blood.
 
  Fill in the blanks with correct word


momo1250

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  • Posts: 338
Reply #1 on: Jun 25, 2018
Answer to Question 1

D
Second-degree 2:1 AV block is characterized by P waves that are normal in size and shape, but every other P wave is not followed by a QRS. The atrial rate is twice the ventricular rate. The PR interval for the conducted beats is constant.

Answer to Question 2

atria


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