pacemaker

Question 1

synchronous pacemaker

Answer 1

pacemaker that is “in synch” with the heart’s own natural activity

Question 2

asynchronous pacemaker

Answer 2

pacemaker initiates impulses at a pre-set rate

Question 3

escape interval

Answer 3

amount of time the pacer will allow the heart to stay in asystole

Question 4

capture

Answer 4

heart’s response to the pacemaker’s impulse

Question 5

pacemaker codes
V
A
D
O

Answer 5

V- ventricles
A- atrium
D- dual
O- none

Question 6

pacemaker mode
T
I
D
O
R

Answer 6

T- triggered (pacer generate impulse)
I-inhibited (pacer inhibited)
D-trigger or inhibit
O- none
R- reverse (generates impulses faster than the SA node)

Question 7

pacemaker code (positions 1,2,3, 4, 5

Answer 7

1- chambers receiving
2- chambers sensing
3- mode of response
4-programmable features
5- anti-arrhythmic functions

Question 8

overdriving the heart

Answer 8

pacemaker overdrives the heart by increasing the HR. paces at a rate faster than SA node
reduces time b/t heart beats, limits ventricles irritability, minimize VT

Question 9

3 components of pacemaker

Answer 9

pulse generator
pacing lead(s)
electrode(s)