Chapter 12 - Pacemakers

Question 1

The pacemaker contains

Answer 1

Electronic circuitry that powers device

Question 2

What does the Pacemaker device look like

Answer 2

Small metal box- 2 stacked silver dollars

Question 3

Where is the pacemaker placed?

Answer 3

Implanted subcutaneously in clavicle region

Question 4

Lifespan of Pacemaker

Answer 4

7-10 years

Question 5

A pacemaker is composed of….

Answer 5

Pulse generator and leads

Question 6

Leads are the connection between…

Answer 6

The heart muscle and generator

Question 7

The pacemaker is inserted into…

Answer 7

The venous system and maneuvered to area of heart requiring stimulation

Question 8

How many leads are in pacemaker ?

Answer 8

Usually one or two leads , sometimes 3

Question 9

What do leads in pacemaker do?

Answer 9

Leads monitor heart rate and provide pacing impulses when needed

Question 10

What is a pacemaker used for ?

Answer 10

Arrhythmias

Question 11

Pacemakers are ALSO used for

Answer 11

Bradycardia leading to low cardiac output , and it monitors heart rate !!

Question 12

Electromagnetic interference can have

Answer 12

A greater risk of malfunction

Question 13

With a pacemaker there’s a small chance of

Answer 13

Infective endocarditis

Question 14

The ends of pacemaker leads are called

Answer 14

Electrodes

Question 15

Which one REDUCES the risk of interferences as both are in close proximity with each other? Bi polar or unipolar??

Answer 15

Bipolar reduces the risk

Question 16

Possible etiologies of malfunction of a pacemaker or ICD

Answer 16

Cell phones and MRI

Question 17

Malfunction in dental office with a Pacemaker / ICD is at ….

Answer 17

Minimal risk , the older ones are at higher risk , using a lead apron reduces the electromagnetic interference

Question 18

Safe dental procedures include

Answer 18

Xrays , handpieces , curing lights , sonic and piezoelectric scaler

Question 19

Unsafe dental produces

Answer 19

Older ferromagnetic ultrasonic scalers
Magnetostrictive ultrasonic scalers
And TENS

Question 20

POSSIBLY unsafe dental procedures

Answer 20

Ultrasonic baths
Electro surgical units
Sonic toothbrushes

Question 21

The sonic toothbrushes how many inches from battery charger ??

Answer 21

6 inches

Question 22

How many inches should you keep sonic tooth brush from implanted device?

Answer 22

1 inch

Question 23

What type of local anesthetics should be used with caution!?

Answer 23

Vasoconstrictors

Question 24

Lightheadedness , dizziness , dyspnea , moist/pale skin , weakness , bradycardia or tachycardia , chest pain and swelling is ALL symptoms of what??

Answer 24

Pacemaker malfunction

Question 25

Treatment of Pacemaker malfunction

Answer 25

Turn off the interference , assess level of consciousness

Question 26

If they are still conscious after malfunction what should you do??

Answer 26

Monitor vital signs , take pulse rate , contact EMS