Give a brief description of how you can identify these anomalies: a. A First Degree AV...

Give a brief description of how you can identify these anomalies:

a. A First Degree AV block __________________________________________________

b. A second Degree AV block Type I __________________________________________

c. A second degree AV block Type II ___________________________________________

electrode placement:

V5 is placed where? ____________________________________________________________

Midclavicular(vertical) line and 5th intercostal space is lead _____________________

How do you find lead V3? __________________________________________________________

Expert Solution

a. A First Degree AV block is usually asymptomatic, but is identified in an ECG. In ECG, the normal PR interval is 0.12 and 0.20 seconds. First degree AV block is indicated if the PR interval consistently longer than 0.20 seconds, or greater than five small boxes. Also every P wave will be followed by QRS complex.

b. A second Degree AV block Type I

Also called Mobitz type I block. The PR interval prolongs continuously resulting in non conduction of P wave. PR interval will be shortest immediately after the dropped beat and longest before the dropped beat.

c. A second degree AV block Type II

Also called Mobitz type II block, and P wave is non conducted in between, but without any prolongation of PR interval. The PR interval remains constant in all conducted waves.

electrode placement:

V5 is placed where?

V5 is placed between V4 and V6 in the junction of anterior axillary line and fifth inter costal space.

Midclavicular(vertical) line and 5th intercostal space is lead V4

How do you find lead V3?

Lead V3 is between leads V2 and V4. Lead V2 is placed at fourth intercostal space at left sternal border and Lead V4 is placed at fifth intercostal space at midclavicular line. The mid way between V2 and V4 is the position of V3.

Nightingale answered 2 years ago

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