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MLA 117 > ECG Module 1 & 2 > Flashcards

ECG Module 1 & 2 Flashcards

(51 cards)

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1
Q

Electro-

A

Prefix for Electricity

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2
Q

Define Cardi/o

A

Combining form meaning “heart”

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3
Q

-gram

A

The record, radio graphic image

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4
Q

Graph

A

Instrument used to record, the record

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5
Q

-graphy

A

Process of recording, radiographic imaging

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6
Q

What electrolyte do sensors use

A

Silver/ silver chloride (Ag/ AgCI)

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7
Q

How big are individual squares on an ECG

A

1mmx1mm

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8
Q

How big are the bigger boxes on the ECG paper

A

5mmx5mm

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9
Q

What is measured on the vertical scale of ECG paper

A

Voltage, 10mm vertical length = 1mv

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10
Q

What is measured on the horizontal scale

A

Time, 1mm horizontally = 40ms (milliseconds)

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11
Q

The 3 universal standards of the electrocardiogram

A

1mmx1mm grid paper- square size
1 millivolt = 10 mm- sensitivity (voltage)
25mm11 second- paper speed

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12
Q

Changing Sensitivity of ECG

10mm/mv → 20mm/mv

A

Increases (doubles) height of QRS complex

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13
Q

Changing sensitivity of ECG

10mm/mv → 5mm/mv

A

Decreases (halves) height of QRS complex

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14
Q

Changing paper speed of ECG

25mm/second → 50mm/second

A

Doubles space between segments

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15
Q

Changing paper speed of ECG

25mm/second → 12.5mm/second

A

Decreases (half’s) the space between segments

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16
Q

What is the filter setting
what is the default

A

Reduces/filters out artifact voltages
150Hz for routine ECG recordings

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17
Q

What are artifact voltages

A

Other electrical voltages that interfere with ECG reading ex.: tremors

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18
Q

What should an ECG machine & lead cables be washed with

A

A water- dampened cloth with mild household detergent added to water if needed

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19
Q

What should cables be checked for pre-analytically

How should they be stored

A

Cracks, kinks, exposed wires
Leave cables hanging- do not wrap

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20
Q

Can a sensor be cut in half, why

A

Yes, for small bodies (pediatric)

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21
Q

How many arm sensors are there, where should they be placed

Study These Flashcards
A

2 arm sensors- placed on the “fleshy” outer-side of the arm pointed towards the waist

22
Q

How many leg sensors are there, where should they be placed

Study These Flashcards
A

2 leg sensors- placed on the fleshy area of the inner/outer calf panted towards the waist

23
Q

How many chest sensors are there, what is the order they should be placed in

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A

6 chest sensors

1,2,4,3,5,6

24
Q

What is the order chest leads should be attached in

Study These Flashcards
A

Numerically- asending order (123456)

25
Anatomical position of V1
4th intercostal space right of the patients sternum
26
Anatomical position of V2
Beth intercostal space left of the patients sternum
27
Anatomical position of V4
Mid-clavicle on the 5th intercostal space left of the patients sternum
28
Anatomical position of V3
On the 5th intercostal space half way between V2 & V4
29
Anatomical position of V5
On the 5th intercostal space in line with the armpit
30
Anatomical position of V6
On the 5th intercostal space in line vertically with the middle of the armpit
31
How does sensor attachment defer for amputees
Placement of limb leads are affected Attach sensor to reman portion of limb Avoid scar tissue Attach sensor to area where limb was attached if missing entirely
32
How does sensor attachment defer for pediatrics
Cut resting sensors n half
33
How does sensor attachment defer for geriatrics
No variation in terms of sensor attachment May require pillow support
34
How does sensor attachment defer for clients with funnel chest
Follow routine sensor placing as much as possible Note on the tracing paper forinterpretation
35
How does sensor attachment defer for psychiatric clients
Request assistance as required- do not place yourself at risk
36
How does sensor attachment defer for rashes, burns, lesions, surgical incisions, & drains
For limb leads- find intact skin to place censors For chest leads- you may only more censor placement 1/2" max if unable to place sensor report which leads are missing and why- check with your supervisor
37
How does sensor attachment defer for clients with a masectomy
Avoid scar tissue, left mastectomy may pose issues with sensor placement Handle patient with understanding & sensitivity
38
How does sensor attachment defer for clients with acute MI
Sweating-clean with alcohol to help sensors stick Trouble breathing- may be done in a semi-recumbent position Mark positions with water proof pen If positions are pre-marked place sensors on those positions
39
Who developed the first electrocardiograph
Dr. Willem Einthoven
40
How many sensors on a 12 lead ECG
10 sensors (6 chest, 4 limb)
41
The electrocardiograph measured time in:
Milliseconds
42
True or false: all ECG is the same quality and my be used interchangeably
False
43
An ECG paper pack nearing the end of the roll will show a _______, _____ line approximately ____ feet from the end
An ECG paper pack nearing the end of the roll will show a solid, red line approximately 30 feet from the end
44
How should you prepare a client for an ECG
Clear instructions Client relaxation Client comfort
45
How should a client be positioned for an ECG recording
In as much of a supine position as possible -no more than 45 degrees in elevation
46
How do you prep a clients skin for an ECG
Clean with alchohol wipe Dried/ braised with a dry gauze wipe or medical grade sand paper
47
What is erythema
Redness of the skin
48
True or false a client should shave if the areas of sensor application are hairy
false- it is not recommended as Micro-abrasions could lead to infection Clip patches of hair with clean medical scissors if necessary
49
Which chest sensor should never be placed on breast tissue
V4
50
What’s another name for chest leads
Precordial sensors/leads
51
Why must chest lead placement be precise
Mid placement can result in diagnostically misleading changes to the ECG waveform- important to get and accurate “picture” of the heart

MLA 117 (4 decks)

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