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Chap 36 EKG Test Part I (part 2 coming) Flashcards | StudBud
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Chap 36 EKG Test Part I (part 2 coming)
Chap 36 EKG Test Part I (part 2 coming)
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#Chap 36
Flashcards
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Questions
41
Answers
1
What describes when the myocardial cells recovers electrically?
Negative deflection
polarization
Repolarization
depolarization
2
On a ECG how many leads record?
12
7
5
10
3
Why should ECG tracing be performed in a quiet, warm, exam room away from electrical equipment?
Pt is able to sleep
Wandering baseline is reduced
Transmission of microorganisms is minimized
Artifacts are reduced
4
Procedure involves taking a portion of a vein and put into one of the hearts coronary arteries?
coronary angioplasty
laser angioplasty
Coronary artery bypass
Atherectomy
5
What is an important part of the pt education when preparing a pt to wear a Holter monitor?
Wear it even in the shower for an accurate reading
Depress the event marker every hour on the half hour
Remove the recorder from its case
Keep a diary of the times of all symptomatic activities
6
What best describes Leads I, II, and III?
Bipolar leads
augmented leads
chest leads
Precordial leads
7
Why should an electrolyte be used when running an ECG?
An electrolyte protects the pt from being shocked
The skin is a poor conductor of electricity
Who knows
An electrolyte reduces the amount of dryness in the skin
8
What is the name of the body's natural pacemaker?
AV node
SA node
Bundle branches
Medulla
9
What represents an error in technique when running an electrocardiogram?
I'm over this :)
running it on the left of the pt
Who knows
Positioning machine so the power cord runs under the table
10
Label the artifact
AC interference
Interrupted baseline
Alternating current
wandering baseline
11
Label the artifact
wandering baseline
AC interference
Somatic tremor
interrupted baseline
12
Which is true about a treadmill stress test?
Electrodes are applied to the arms, chest, and legs
It is taken under uncontrolled conitions
The stress test is monitored closely by the provider
It is an invasive ECG tracing
13
What would NOT need to be recorded in the Holter monitor pt activity diary
Name of nearest relative
eating meals
Times of sleep
bowel movements
14
What type of atrial arrhythmia is characterized by extremely rapid incomplete contractions?
Premature atrial contraction
Normal sinus rhythm
Atrial Fibillation
Bradycardia
15
Why are electrodes applied to the fleshy part of a limb?
To reduce AC interference
To minimize the artifacts
To correct wandering baseline
To prevent interrupted baseline
16
Which is true regarding Ventricular Fibrillation?
Ventricular tachycardia occurs in healthy people
It has a cardiac cycle occurring early
Ventricular fibrillation is life threatening
It is often seen in pt's using depressants
17
What does the cardiac cycle represent?
Contraction of the atria
relaxation of the entire heart
One heartbeat
contraction of the ventricles
18
What best describes the function of standardization of the EKG machine?
To check for artifacts
To determine whether the machine is set and working properly
To set machine timing
To determine the correct placement of chest electrodes
19
5th intercostal space at junction of left midclavicular line
V1
v6
v3
v4
20
Why would power cord point away from the pt and not allow the cable to go underneath the table?
Causes somatic tremor artifacts
Causes interrupted baseline
Helps reduce AC interference
Helps reduce wandering baseline
21
If the electrocardiograph is properly standardized, the standardization mark should be how high
12mm
5mm
7mm
10mm
22
What is a reason to have an EKG?
Detects myocardial ischemia
Assesses cardiac medication on the heart
Estimates damage from MI
All of the above
23
What occurs if the metal tip of a lead wire becomes detached from an electrode?
wandering baseline
Muscle artifact
Interrupted baseline
Alternating current
24
Name of the device placed on the skin that picks up electrical impulses given off by the heart?
Amplifier
Lead wire
electrolyte
electrode
25
Where does deoxygenated blood enter the heart?
Right atrium
Pulmonary artery
right ventricle
Pulmonary vein
26
At horizontal level of position 4 at left anterior axillary line
V6
v3
v1
V5
27
At horizontal level of position 4 at left midaxillary line
V2
V6
V1
V5
28
What is and example of an artifact carded by electrical interference?
DC interference
Pt cough
AC interference
Pt sneeze
29
Which of the following would NOT result in somatic tremor artifact?
Improper grounding of the ECG machine
Apprehensive pt
Pt coughing or talking
Pt discomfort
30
Which lead records electrical activity between the right arm and the left leg?
Lead II
Lead I
AVL
AVF
31
Which requires injecting pt with radioactive substance?
CPR
Thallium stress test
EKG
Coronary artery bypass
32
Fourth intercostal space at the left margin of sternum?
V6
LL
V2
V4
33
What artifacts can be caused by poor quality electrolyte get?
Wandering baseline
somatic tremor
Alternating current
Voluntary muscle movement
34
What coverts cardiac arrhythmia into normal sinus rhythm?
Ventricular fibrillation
None of the above
Cardioversion
Noninvasive Holter monitor
35
What best describes an electrocardiogram?
Only indicated when pt's have symptoms
Preformed on every adult pt over 40
Visualization of the heart's activity
Graphic representation of the heart's electrical activity
36
What is the term used to refer to an ECG reading that is within normal limits?
Sinus arrhythmia
normal sinus rhythm
baseline recording
A-Fib
37
What best describes EKG paper?
light sensitive
Heat sensitive
chemically sensitive
moisture sensitive
38
Label the artifact
Alternating current or AC interference
Somatic Tremor
Interrupted basline
wandering baseline
39
Label the artifact
interrupted basline
AC interference
Somatic tremor
Wandering baseline
40
What best describes the contraction of the cardiac cells from the electrical discharge?
Repolarization
Negative deflection
Depolarization
Polarization
41
Midway between position 2 & position 4
V2
V3
V6
V1
