EGM Normal Values

Question 1

What is the length of a jump beat?

Answer 1

AH jumps >50ms in A2 - H2

Question 2

What is the activation sequence AVNERP look like on an EGM?

Answer 2

Capture A, no H or V.

Question 3

What is the activation sequence AVERP look like on an EGM?

Answer 3

no captured A

Question 4

What is the activation sequence VERP look like on an EGM?

Answer 4

no captured V

Question 5

What is the activation sequence VAERP look like on an EGM?

Answer 5

Captured V, no A

Question 6

What is the normal QT interval?

Answer 6

less than half the preceding R-R interval

Question 7

What is the normal PR interval?

Answer 7

120 - 200 ms

Question 8

What is a normal SNRT ?

Answer 8

< 1500 ms

Question 9

What is a normal PA interval?

Answer 9

10 - 40 ms

Question 10

What is the normal interval for cSNRT?

Answer 10

< 550 ms

Question 11

What is the normal H-V interval?

Answer 11

30 - 55 ms

Question 12

What is the normal A-H interval?

Answer 12

55 - 130 ms

Question 13

What is the length of a normal QRS?

Answer 13

60 - 100 ms

Question 14

What is the length of a normal PR interval?

Answer 14

120 - 200 ms

Question 15

Where do you measure the A-H interval?

Answer 15

earliest deflection of HIS-A to earliest on HIS egm

Question 16

How do you measure the H-V interval?

Answer 16

earliest deflection of HIS to onset of earliest surface V