Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ECG > ECGquiz1-3 > Flashcards

ECGquiz1-3 Flashcards

1
Q

What does the P-wave represent in relationship to atria or ventricles?

A

Atrial Depolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What does the qrs interval represent?

A

Ventricular Depolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What does T wave represent?

A

Ventricular repolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When does atrial systole occur?

A

Between end of P wave and before beginning of q-wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

When does Ventricular systole occur?

A

After QRS interval & before T wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does P-R interval represent?

A

Atrial Depolarization & impulse delay in AV node

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does Q-T interval represent?

A

Time from initial depolarization of ventricles to end of vent repolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name 2 mechanisms of pacemaker activity:

A

Escape Mechanism

Irritability Mechanism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When any clump of calls can become irritable & become a pacemaker & take control from the SA node this is known as ________ mechanism.

A

Irritability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When the dominant pacemaker fails & next one in line takes over & paces at its inherent rate this is known as the _______ mechanism.

A

Escape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the inherent rate of Purkinje Fibers or Ventricle

A

20-40

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is inherent rate of SA Node?

A

60-100

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is inherent rate of AV Node?

A

40-60

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

During Polarization or ready state where is K located and where is Na?

A

K is inside cell

Na is outside cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The discharge state in which K & Na are changing places is known as?

A

Depolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When K is outside & Na is inside this is ________.

A

Repolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the three stages the cell goes through from its ready to recovery state?

A

Polarization (ready)
Depolarization (Discharge state)
Repolarization (Recovery State)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the 3 common viewpoints of ECG?

A

Lead 1
Lead 2
Lead 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Name the 3 wires included in leads?

A

Positive
Negative
Ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

When you have an inverted t wave this may indicate what condition?

A

Myocardial ischemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is normal paper speed on ECG?

A

25 mm/sec

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

A tic mark represents what time?

A

Every 3 seconds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

1 small box = _______ mm; _______ second

A

1mm

0.04 sec

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

_____ small boxes = 1 large box

A

5 small boxes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

1 large box = _______ seconds; ______ mm

A

0.2

5 mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is the most common lead?

Which electrode has most effect on viewpoint

A

Lead 2 most common

Positive electrode most effect on viewpoint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

How many boxes = 6 seconds?

A

30 large boxes = 6 seconds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

15 large boxes = ______ seconds

A

3 seconds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is normal size of p-wave _______ mm in amplitude

A

.5 - 2.5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What is duration of P-R interval?

A

0.12 - 0.20 sec

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What is duration of QRS Interval?

A

0.11 sec or less

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Name the 3 lead Categories?

A

Limb Leads
Augmented leads
Precordial Leads

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Electrodes are arranged in Patterns called ______.

A

Leads

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

The natural direction the electrical activity travels which is from base to apex is called ________.

A

Vector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

The P-wave seen occurs due to ________ ________.

A

Atrial Depolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

The QRS complex seen on ECG occurs due to ________ __________.

A

Ventricular Depolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

The S-T segment & T Wave seen occurs due to _______ _________.

A

Ventricular Repolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

How many beats per minute is normal for an infant?

A

100-160

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

What is normal BPM for a toddler?

A

90-150

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

What is normal BPM for a preschooler or 4-5 yr old

A

80-140

41
Q

A child who is 6-12 yrs old has normal PBM of

A

70-120

42
Q

What is normal BPM for teens & adults

A

60-100

43
Q

At what segment would you expect to see the delay in conduction through AV Junction & spread of electrical impulse through bundle of HIS, rt & left bundle branches & purkinje fibers?

A

P-R Segment

44
Q

What types of cells are known as the conducting system?
A. Electrical Cells
B. Mechanical Cells

A

A Electrical Cells

45
Q

What causes an electrical impulse?
A. Result of the cells changing chemically
B. Sodium-K pump at cellular level changing electrical balance of the cell
C. Automaticity- ability to repeat impulse without a an external signal
D. All of the above

A

D. All of the above

46
Q

During the Resting or polarized state you would expect to see outside the cell as ________ charges and inside the cell with _____ charges.

A

Outside = positive charges

Inside negative charges

47
Q

Depolarization changes as outside becomes _______ and inside is _____ charged.

A

Mostly negative outside

Mostly positive inside

48
Q

The recovery state is called _______.

A

repolarization

49
Q

The heart is influenced by the _________ _________ system.

A

Autonomic nervous system

50
Q

________ and _________ creates a balance by increasing rate & decreasing rate via affecting irritability.

A

Sympathetic & parasympathetic

51
Q

To determine HR= QRS complex in ___seconds x 10

A

6 seconds

52
Q

The P-R segment is: After ___ wave & before ____ wave

A

After p wave & before q wave

53
Q

The S-T segment is: After _____ wave & before _____ wave

A

S wave & before T wave

54
Q

The depolarization of right and left atria is _____ wave.

A

P -wave

55
Q

What is the duration of normal p wave:

A

0.11 seconds or less

56
Q

The ______ segement allows time for atria to empty into ventricles before ventricular contraction begins and is normally flat or islectric

A

P-R Segment

57
Q

The time it takes to depolarize the atria and for the electrical impulse to reach the purkinje fibers is called _______ ______.

A

P-R Interval

58
Q

When the P wave is added to the PR segment it is called _______ ________,

A

P-R Interval

59
Q

The P-R interval normally lasts ______ to _________ seconds.

A

0.12 to 0.20 seconds

60
Q

THe _______ _________ represents ventricular depolarization.

A

QRS complex

61
Q

What is normal duration of QRS complex?

A

0.06 to .10 seconds

62
Q

What might cause a long QRS complex?

A

impulse originates from ectopic pacemaker like ventricular myocardium or partial or incomplete bundle branch block

63
Q

If your SA node fires irregulary this causes a ______ ________.

A

Sinus arrhythmia

64
Q

Which wave indicates ventricular repolarization?

A

T wave

65
Q

Name 5 stages of cardiac cycle

A 
Atrial systole
Isovolumetric ventricular contraction
Ejection
Isovolumetric ventricular relaxation
Passive Ventricular Filling
66
Q

Amount of blood pumped into aorta each minute by the heart is ______ _______.

A

Venous return

67
Q

Amount of blood ejected from a ventricle with each heartbeat is?

A

stroke volume

68
Q

Amount of blood pumped into aorta each minute is?

A

Cardiac output

69
Q

WHen the inside of cell is ore negative then outside of cell than it is in _______ state?

A

Polarized State

70
Q

The movement of charged particles across cell membrane causing inside of cell to become more positive then outside this is _______ state

A

Depolarized State

71
Q

This type of limb lead makes a single limbe positive and all other limbs negative?

A

Augmented Limb lead

72
Q

Provides vertical & horizontal views and improves diagnosis accuracy. This type of limb lead is called?

A

Precordial

73
Q

In this type of limb lead a weak electrical signal must be amplified

A

Augmented Limb lead

74
Q

If you see a Peak T-wave this may mean what condition?

A

Hyperkalemia

75
Q

A method of finding heart rate with small boxes is called rule of _____. Each 1 mm block -.04 seconds; Count # of small boxes between r-r interval & divide into 1500. Use the P-P interval for atrial.

A

1500

76
Q

In the Rule of ______. The # of QRS complexes in 6 seconds X 10

A

Rule of 10

77
Q

You use _____ interval & _______ interval to determine rate & rhythmicity

A

R-R interval & P-P interval

78
Q

If you see a peaked or tall & pointed p wave or wide & notched what are some conditions it might mean?

A

COPD, Heart Failure, Valvular Disease

79
Q

If your p wave is inverted this might mean what?

A

The p wave began at a site other than SA node

80
Q

An abnormal S-T segment may mean?

A

Myocardial infarction

81
Q

Medications such as morphine & digitalis may cause what?

A

Non Resp sinus arrhythmia

82
Q

What can be used to treat Sinus Arrythmias?

A

IV atropine

83
Q

What is used to treat sinus tachycardia?

A

Beta Blockers

84
Q

What is used to treat sinus bradycardia?

A

O2, Atropine, IV access, TCP

85
Q

CHF, Sympathetic stimulation, Caffeine, shock, or coronary artery disease can cause _______ ______.

A

Sinus Tachycardia

86
Q

In sinus bradycardia what happens to your Q-T interval?

A

Becomes longer

87
Q

The Q-t interval becomes _______ during sinus tachycardia.

A

Shorter

88
Q

Increased ICP, Hypoxia, Hypothermia, Inferior or posterior MI or disease of SA node cause?

A

Sinus Bradycardia

89
Q

Certain medications such as ______, _______, or ______ can cause sinus tachycardia.

A

Epinephrine, atropine, dopamine, dobutamine

90
Q

Medications that can cause Sinus bradycardia include?

A 
Calcium Channel blockers
Digitalis
Beta Blockers
Anodarone
Sotalol
91
Q

What is formula for CO?

A

SV X HR = CO

92
Q

This is a vagolytic drug which blocks chemicals at end of vagus nerve causing rate of SA node to increase firing.

A

Atropine

93
Q 
Atropine has no effect on?
A.  Speed of conduction
B.  FOrce of contraction
C.  Rate of SA node firing
D.  All of the above
A

Force of contraction

94
Q

T or F: Electrical activity can occur without mechanical contraction.

A

True

95
Q

A sign of abnormal electrical activity is?

A

Dysrhythmia or arrhythmia

96
Q

Name 2 things that can affect sinus mechanisms.

A

Disease or conditions

Medications

97
Q

What are causes of vagal stimulation?

A

Coughing, vomiting, straining, Carotid sinus pressure, Sudden exposure to cold water

98
Q

Absolute refractory occurs during?

A

QRS to peak of t wave

99
Q

Relative refractory occurs at?

A

Peak of T wave to base of T wave

ECG (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions