Author Question: Second-degree AV block type I is characterized by _____ intervals. a. irregular P to P b. ... (Read 179 times)

jayhills49

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Second-degree AV block type I is characterized by _____ intervals.
 
  a. irregular P to P
  b. regular R to R
  c. regular P to P intervals and irregular R to R
  d. irregular P to P intervals and irregular R to R

Question 2

Name the two main branches of the left coronary artery.
 
  What will be an ideal response?



chem1s3

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Answer to Question 1

C
Second-degree AV block type I is characterized by an irregular ventricular rhythm (i.e., irregular R to R intervals), more P waves than QRS complexes, and P waves that occur regularly (i.e., regular P to P intervals).

Answer to Question 2

The left main coronary artery supplies oxygenated blood to its two primary branches: the left anterior descending (LAD; also called the anterior interventricular) artery and the circumflex artery (CX).



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