Pacer/icd

Front 1

goal of pacing

Back 1

maintian CO

Front 2

-ability of pacing stim to depolaize chamber
-recognized when pacing spike is followed by appropriate waveform

Back 2

capture

Front 3

-ability of pacemaker to detect intrinsic cardiac activity to be able to respond appropriately

Back 3

sensing

Front 4

Absence of pacing stimulus where one should be

Back 4

Failure to discharge
-Ck battery, connections
-r/o electrical interference
-may need emergent temp pacer

Front 5

Inability of pacer to sense pt's own intrinsic beats. pacer seen firing on ST segments and R waves, etc.

Back 5

Undersensing
-increase sensitivity i.e. reduce mV setting (set too high)
-lead dislodgment

Front 6

Strength of electrical impulse from pacer measured in

Back 6

mA
Output/Stim threshold

Front 7

Strength of electrical impulse from heart measured in

Back 7

mV
Sensing/sensitivity

Front 8

Occurs when pacer senses stray electrical signals. Pacer fires impulses at slower rate then programmed for.

Back 8

Oversensing
Decrease sensitivity i.e. increase mV setting (set too low)

Front 9

Pacer spikes not followed by waveforms (ie P wave or QRS wave)

Back 9

Failure to capture
Ck pt for S&S dec CO
-lead dislodgment/connections
-increase output (mA)(set too low)
-Check labs
-

Front 10

mA too low causes

Back 10

Failure to capture

Front 11

mV set too low causes

Back 11

Oversensing
Must increase setting (thus decreasing sensitivity)

Front 12

mV set too high causes

Back 12

Undersensing
Must decrease setting (thus increasing sensitivity)

Front 13

Impt teaching for pt in hosp with transvenous pacer

Back 13

Keep arm/leg straight

Front 14

Position-chambers paced

Back 14

1

Front 15

Position-chambers sensed

Back 15

2

Front 16

Position-response to sensing

Back 16

3

Front 17

Position-rate modulation

Back 17

4

Front 18

Pacer set to I in 3rd position (response to sensing). Pacer only fires if pt's own intrinsic rate drops below set rate (say 70)

Back 18

Demand pacing
I=pacer being inhibited

Front 19

Mode used to test pacers fxn (ie approp firing/capture) on Dr visit

Back 19

asynchronous

Front 20

VVI

Back 20

Single lead pacer
In ventricle
On demand
-Often used for temp vent pacers

Front 21

DDD

Back 21

Dual lead
Ventricle and atrium
Paces and senses (works as on demand but also can trigger a qrs based on sensed p wave)
-Often used for perm pacer

Front 22

DDDR

Back 22

Dual lead
Ventricle and atrium
Paces and senses
Also speeds up or slows rate in response to sensor output

Front 23

T/F
Nurses can change settings on pacers

Back 23

T for temp pacer
F for perm pacer

Front 24

ICD must get checked how often

Back 24

q2-3 mo

Front 25

T/F
Pt with ICD can stop antiarrhythmic Rx

Back 25

F-Treated no differently. In emergent situations can still be shocked as well

Front 26

indicate in class 3/4 HF

Back 26

Bivent ICD