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EKG Technician > Electrocardiogram Technician: Module 3 > Flashcards

Electrocardiogram Technician: Module 3 Flashcards

1
Q

12 Lead ECG produces a complete picture from

A

12 different positions of the electrical activity of the heart,

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2
Q

EKG Machine uses how many lead wires?

A

10 lead wires (six chest and 4 limb leads)

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3
Q

Each Lead wire is attached to what that gets attached to a patient?

A

electrode

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4
Q

10 lead wire produce different circuits that are:

A

Limb leads are Bipolar
Augmented Limb Leads are Unipolar
The Chest Leads are Unipolar

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5
Q

What is the reason for only 10 leads?

A

Enithoven’s Triangle

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6
Q

How many leads creates Einthoven’s Triangle?

A

3 Biopolar Leads

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7
Q

You create the Einthoven’s Triangle using?

A

Leads 1, 2, and 3
AVR, AVL, and AVF

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8
Q

Which lead produces records of tracing from left to right arm?

A

Lead 1

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9
Q

Lead 2 produces tracings from?

A

right arm to left leg

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10
Q

Which lead produces tracings from left arm to left leg?

A

Lead 3

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11
Q

AVR measures

A

from right arm to halfway between left arm. Placed on right arm of patient

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12
Q

AVL measures

A

from left arm to halfway between right arm. Placed on left arm of patient.

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13
Q

AVF measures

A

from midpoint between right arm and left arm to left leg.

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14
Q

Chest leads are also known as

A

precordial leads and measure in only one direction

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15
Q

Chest leads are numbers V1 to V6 and

A

are placed on specific spots of the chest.

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16
Q

Chest Leads are placed on specific areas of the heart to

A

assist clinicans in finding problem areas of the heart

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17
Q

Each of the v1 to v6 provides

A

a slightly different image if the heart.

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18
Q

Getting the impulse from the electrode is called

A

input

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19
Q

What is signal processing?

A

Amplication of signals inside the machine such as augmented leads.

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20
Q

Shown on either via a screen and/or printed report

A

output display

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21
Q

Every ECG machine uses its own programming, hard drive and processor.

A

Computerized Measurements

22
Q

When EKG machine have networking capabilities and can send information to central location or another machine

A

Communication

23
Q

What is is called when some machines can give you a hint of what is wrong with a patient using

A

Interpretation

24
Q

What are the ECG Machine Controls?

A

Speed
Gain
Artifact Filter
Heart Rate Limit Alarm
Stylus Standardizaton Controls
Lead Selector

25
Q

What is the standard speed of the ECG machine?

A

25 mm per second

26
Q

The speed of the ECG machine changes to run at 50mm/sec when

A

A patient has a faster heart rate and medical professional directs EKG tech to run the machine faster.

A patient is a child because children have a faster heart rate than adults.

27
Q

Changes of the setting of the machine should

A

Be reported on the ECG report itself.

28
Q

What is the gain control?

A

Controls height of ECG waveform. ECG machine can sometimes produce a waveform that is too tall and affects waveforms of other readings.

29
Q

Sometimes the waveform may be

A

too short to read. Standard ECG setting for gain is 10 millimeters per millivolt.

30
Q

If ECG waveform is too tall

A

lower gain control to 5 millimeters.

31
Q

If ECG waveform is too short

A

raise gain to 15 millimeters.

32
Q

True or False: You must note changes to gain control on ECG report.

A

True

33
Q

Abnormalities that should not be seen on an ECG due to outside interference

A

Artifacts

34
Q

Some types of artifacts are:

A

Metal
Electrical
Movement

35
Q

Most atrtifact filters in older machine must

A

be enabled

36
Q

The artifact filter in newer machines (2000 or later) are

A

automatically enabled

37
Q

What is the Heart Rate Limit Alarm?

A

A part of the EKG machine used for continuous monitoring of patients allowing the technician to set a heart rate limit or alarm.

38
Q

The heart rate alarm notifies the clinicians when

A

a patient’s heart rate goes above or below expected limit.

39
Q

What is the stylus standardization controls?

A

They are no longer used but can be found on older machines and standardization may be used for older machines.

Always check with employers and follow manufacturers directions.

40
Q

What is the lead selector?

A

Used when clinicians want to view one specific lead or view of the heart.

41
Q

Lead selector gives clinicians

A

a longer view of the lead

42
Q

ECG electrodes come in different

A

types and shapes

43
Q

The electrodes is the sensors that

A

pick up electrical activity that the machine will interpret.

44
Q

Most electrodes are

A

disposable but some facilities use reusable types.

45
Q

The graph paper for the ECG is printed on thermal paper which

A

can be sensitive to alcohol, plastic, sunlight, x-ray film and certain metals.

46
Q

With ECG graph paper, horizontal readings represent

A

time

47
Q

With ECG graph paper, vertical readings represent

A

voltage or amplitude

48
Q

Distance equals

A

time

49
Q

Height equals

A

voltage/amplitude

50
Q

For ECG graph paper each large box is made up of

A

5 x 5 grid of small boxes (25 small boxes)

51
Q

Each large box on ECG graph paper represents a length of

A

0.2 seconds for 5 boxes
0.04 seconds for 1 box

52
Q

Each large box on ECG graph paper represents a voltage of

A

5 mm for 5 boxes
1 mm for 1 box

EKG Technician (8 decks)

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