P&p-Spring 2014, Exam 2

Front 1

Suitable for atrial pacing only

Back 1

TEP

Front 2

Most anesthetizes pts have intact ____ pathways, with AV heart block under anesthesia a rare event

Back 2

AV conduction

Front 3

AV heart block under anesthesia occurs only secondary to ____ or surgical damage to conduction system

Back 3

AMI

Front 4

Failure to pace is easy to diagnose with observation of a

Back 4

Pulsatile waveform

Front 5

Failure to pace can be d/t an absence of delivered impulses as with:

Back 5

Pulse generator failure

Front 6

Failure to pace can be d/t the inability of the delivered impulses to excited the myocardium d/t:

Back 6

Pulse generator battery failure, lead displacement or fracture, infarcted myocardium

Front 7

You will see a spike and no complex afterwards, pulse ox won't have beat sound and you will lose the pleth

Back 7

Failure to pace

Front 8

In failure to pace, the _____ will change first before the BP will drop.

Back 8

EtCO2

Front 9

Usually d/t lead displacement, fracture, or pulse-generator failure

Back 9

Failure to sense

Front 10

Failure to sense may also be d/t inadequate ______ or distorted shape of intrinsic ______, or improper setting of sensing parameters

Back 10

Amplitude; electrical signal

Front 11

Detection of signals other than those it is designed and programmed to detect - may result in inappropriate pacing

Back 11

Oversensing

Front 12

Usually d/t dislodgment of leads, loose or fractured leads, or interference from other sources

Back 12

Oversensing

Front 13

Cross-talk interference can be from:

Back 13

Pectoral or other skeletal muscle contractions

Front 14

Oversensing can be corrected by reprogramming to appropriate sensing parameters or convert to:

Back 14

Asynchronous mode (magnet)

Front 15

May be d/t over sensing, excessive age or damage to generator, component failure (runaway pacemaker)

Back 15

Pacing at an altered rate

Front 16

To correct pacing at an altered rate, remember that rate reduction by drugs or cardioversion will be :

Back 16

Ineffective

Front 17

Pacemaker circuit acts as part of an aberrant conduction pathway with:

Back 17

Endless loop tachycardia (ELT)

Front 18

ELT is terminated by:

Back 18

Asynchronous mode (magnet), precordial thump, isometric chest muscle exercise, conversion to DVI

Front 19

Atrial tracking pacemakers may sense a fib rates and match ventricular rates accordingly causing:

Back 19

Pacemaker mediated tachycardia (PMT)

Front 20

PMT is terminated by

Back 20

Asynchronous (magnet) mode, eliminating atrial sensing, avoid programming atrial tracking modes

Front 21

Respond to various physiologic indicators

Back 21

Rate responsive pacemakers

Front 22

Rate responsive pacemakers can respond to:

Back 22

Temp, pH, QT interval, etc

Front 23

Have an increased likelihood of malfunction

Back 23

Rate responsive pacemakers

Front 24

For pre op eval, you want to evaluate the pt's underlying:

Back 24

Cardiac disease

Front 25

For pre op eval, you want to do which two tests?

Back 25

EKG, electrolytes

Front 26

For pre op eval, it is important to determine the:

Back 26

Underlying rhythm

Front 27

The ______ will have the underlying rhythm listed on it

Back 27

Interrogation report

Front 28

If you have an intrinsic pacemaker and you want to slow the HR you can:

Back 28

Perform valsalva, edrophonium, magnet, call the rep

Front 29

Diagnostic x-rays or CT scans should not produce:

Back 29

Electromechanical interference (EMI)

Front 30

EMI can be produced by:

Back 30

Strong ionizing beams of radiation, MRI, electrocautery

Front 31

Most demand permanent pacemakers are programmed to return to _____ rates in the presence of continuous EMI, but you may have to use a _____

Back 31

Asynchronous; magnet