CP Cardiac Flashcards

1
Q

Which node is found between the atria and the ventricle near the septum?

A

AV

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2
Q

Baroceptors and chemoceptors send signals to the cardiac center in the Pons which initiates sympathetic impulses to increase heart rate T or F

A

True

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3
Q

What is Angina Pectoris

A

Chest pain or discomfort cause by poor coronary circulation

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4
Q

Which vein contains o2 blood

A

Pulmonary vein

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5
Q

Another name for mitral valve

A

Left atrioventricular valve

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6
Q

QRS complex represents

A

Ventricular depolorization

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7
Q

T or F All chambers of the heart ate in diastole at the same time for about half the duration of a normal cardiac cycle

A

True

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8
Q

The fibrous pericardial sac is lined with [_____] membrane

A

Serous

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9
Q

P wave represents

A

Atrial depolorization

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10
Q

Another name for tricuspid valve

A

Right atrioventricular valve

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11
Q

Systole is when

A

The heart contracts

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12
Q

Diastole is when

A

The heart fills or relaxes

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13
Q

What semilunar valve separates the left ventricle and aorta

A

Aortic valve

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14
Q

T or F most of the blood that is ejected from the ventricles enters the ventricles during atrial systole

A

False

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15
Q

Where does the heartbeat originate

A

SA node

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16
Q

Oxygenated blood from the lungs enters the heart through the

A

Left atria

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17
Q

Stroke volume is

A

The amount of blood pumped out of the heart with each contraction

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18
Q

Where is the SA node

A

Right atrium

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19
Q

Where is the bundle of his

A

Spreading down the septum

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20
Q

Where are the perjunke fibers

A

Spread through the ventricles

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21
Q

What is the ST segment

A

A rest period. When the ventricles are finished depolorizing and they are about to repolorize

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22
Q

What is the PR interval

A

Delay that allows the ventricles to fill with blood before ventricular depolorization

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23
Q

What is the R-R interval

A

Patients heartrate/beat

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24
Q

What is congestive heart failure and a few signs of it

A

When the cardiac muscles show decreased ability. Enlarged heart, decreased EF, pulmonary rules.

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25
Q

What is coronary artery disease and signs.

A

Buildup of plaque which results in the narrowing of arteries. High cholesterol and triglycerides

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26
Q

What is acute myocardial infarction and its signs

A

Heart muscle dying. Radiating chest pain going down arm, diaphoresis(sweating), nausea, slow breathing

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27
Q

What is a right to left shunt

A

A shunt that allows directly bloodflow from the right side to the left side of the heart bypassing the lungs. This circulates less oxygenated blood thru body.

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28
Q

What is the lca

A

Left coronary artery

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29
Q

What is the lad

A

Left anterior descending

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30
Q

What is the Cx or LCx

A

Left circumflex

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31
Q

What is the RCA

A

Right coronary artery

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32
Q

Depolorization is when the heart is

A

Contracting

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33
Q

Repolorization is when the heart is

A

Relaxing or filling

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34
Q

Where is the LAD coronary artery

A

Anterior and septal portion of the left ventricle

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35
Q

Where is the Cx coronary artery

A

Lateral wall of left ventricle

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36
Q

Where is the RCA

A

Around septal wall to posterior heart

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37
Q

What is arrhythmia

A

Irregular heart beat

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38
Q

What is bradycardia

A

Slower than normal heart rate

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39
Q

What is tachycardia

A

Faster than normal heart rate

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40
Q

How to multiply stroke volume

A

CO/HR

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41
Q

What does CO stand for

A

Cardiac output

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42
Q

What is CI

A

Cardiac index

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43
Q

What does EDV stand for

A

End diastolic volume

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44
Q

How to calculate EDV

A

SV/EF

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45
Q

What happens during depolorization

A

Contraction

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46
Q

What happens during repolorization

A

Relaxation or filling

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47
Q

What is ESV

A

End systolic volume

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48
Q

How to calculate ESV

A

EDV-SV

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49
Q

How to calculate EF

A

EF= EDC-ESC/EDC x 100

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50
Q

What dies PFR stand for

A

Peak emptying rate

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51
Q

What does MPTT stand for

A

Mean pulmonary transit time

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52
Q

What does the P wave show

A

Atrial depolorization

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53
Q

What does the PR interval show

A

Time it takes electrical impulse to reach ventricles and initiate depolorization

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54
Q

What does the ST segment show

A

Completion of ventricular depolorization and beginning of ventricular repolorization

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55
Q

What does the T wave show

A

Ventricular repolarization

56
Q

What does the R to R interval show

A

The heartrate/beat

57
Q

Describe congestive heart failure

A

Cardiac muscle decreased ability. Enlarged heart, decreased ef…

58
Q

Describe coronary artery disease

A

Buildup of plaque in arteries. Leads to decreased O2 vs demand [ischemia], eventually leads to infarct.

59
Q

Describe high blood pressure

A

Fore against artery walls too high

60
Q

What is a left to right shunt.

A

Blood flows from left side to right then lungs. Backup of blood can cause HBP.

61
Q

Describe a right to left shunt

A

Direct blood flow from r to l side of heart skipping lungs. Decreased O2 to blood, dyspnea, cyanosis…

62
Q

A focal decrease in perfusion occurring on both the rest and stress 201-Tl image is most commonly caused by

A

Previous myocardial infarction

63
Q

All of the following are necessary patient preparation steps before treadmill exercise scintigraphy begins except

A

Allowing the patient to take their iderol

64
Q

Label

A

1 posterior wall slice
2 apex
3 lateral wall
4 base
5 septal wall
6 anterior slice

65
Q

Patients should continue to exercise for at least _____ following dose administration of sestamibi

A

30 seconds

66
Q

Informed consent is necessary for

A

Thallium rest/cardiolite stress studies

67
Q

Imaging with thallium. The camera is usually peaked to the

A

80 kev gamma peak

68
Q

It is possible that a physician may order a 24 hour thallium image when

A

The rest and stress were both positive

69
Q

Patients that are taking beta glocker medicine will…

A

Not be able to reach their maximum heartrate

70
Q

_____ does not reperfuse after administration, allowing imaging to take place for several hours after injection

A

Sestamibi

71
Q

MPI Stress studied are used to rule out

A

CAD/myocardial ischemia

72
Q

Clubbing of fingers is seen with patients…

A

With a R to L shunt

73
Q

Dyspnea

A

Difficulty breathing

74
Q

Diaphoresis

A

Profuse sweating

75
Q

Post-prandial

A

After meal

76
Q

Another name for MUGA

A

Ventriculogram or gated equilibrium

77
Q

Pulmonary hypertension

A

Increased BP due to vasoconstriction

78
Q

Essential vs primary hypertension

A

Essential is unknown, primary is known

79
Q

Cyanosis

A

Patient turning blue

80
Q

Streptokinase

A

Treatment to help remove plaque buildup

81
Q

Bronchospastic disorder

A

Asthma

82
Q

Primary indication for viability scan

A

CABG

83
Q

Primary indication for 1st pass scan

A

R to L Shunt evaluation

84
Q

Primary indication for MUGA scan

A

Chemo patients

85
Q

Drugs for MPI studies

A

Tetrofosmin low and high dose, no max
Sestamibi low and high dose, max 40, doesn’t wash out
Thallium 1-5 mCi

86
Q

24 hr Thalloum scan increases

A

Sensitivity

87
Q

Benefits and drawbacks of thallium

A

Only have to inject once. Can image immediately after stress, stress always 1st, 24 hour scanning, low lev, doesn’t have as much flexibility, NPO whole test

88
Q

Myoview benefits

A

Can do stress or rest first with low dose amount.

89
Q

Sestamibi facts

A

Low dose 1st always, wait 45z1hr before rest images after inject, want patient to eat after stress

90
Q

Patient prep treadmill

A

No coffee, no beta blockers, signed informed consent

91
Q

If patient is injected before target heart rate…

A

Won’t get cardiac steal and poor redistribution

92
Q

Stress tests look for

A

Ischemia vs infarction

93
Q

Name the 3 arteries and the walls they supply

A

Lad, anterior wall
Lcx, lateral wall
Rca, posterior and septal wall

94
Q

Max dose for Aminophylline

A

250 MG

95
Q

Dobutamine max dose

A

40 ug

96
Q

Dobutamine facts

A

40 ug/kG max
Positive amatrophic agent
Increases patient HR
can’t use beta or calcium channel blockers
Can do with caffeine
Can do with xantines
Can do with Bruce protocol

97
Q

Esmolol is used for

A

Reversal of dobutamine, it is a beta blocker

98
Q

Caffeine is a…

A

Vasoconstrictor, keeps from dilating

99
Q

What is persantine half life

A

30 minutes

100
Q

Persantine facts

A

Binds to receptors
60 MG max dose
4 min infusion, 3 min injection, 2 min aminophylline
0.142

101
Q

Adenosine facts

A

0.14 min
Inject radiopharm halfway thru
4 min or 6 min infusion
More severe side effects

102
Q

Lexiscan facts

A

Inject 10-20 sec after saline, flush, radiopharm, saline. 0.4mg

103
Q

Adenosine and lexiscan_____ extracellular adenosine

A

Increase

104
Q

Bruce protocol

A

Treadmill goes up every 3 minutes and incline, has 7 stages

105
Q

Sestamibi within the cell

A

Targets the mitochondria

106
Q

What section of the heart do we look at during a MUGA

A

Left ventricle

107
Q

Labeling methods

A

Ultratag 95%
In vivo 85%
Mod in vivo 90%

108
Q

Best view for MUGA scan

A

Lao with causal tilt

109
Q

How to calculate EF

A

SV/EDV or EDV-ESV/EDVx100 or max-min/max x100

110
Q

Strove volume , ejected per beat

A

Co/HR or EDV-ESV

111
Q

CO

A

SVxHR

112
Q

HR

A

CO/SV must change liters to ml

113
Q

Ischemia symptoms

A

Nocturnal and postprandial pain

114
Q

R to L shunt symptoms

A

Dyspnea, clubbing

115
Q
A
116
Q

If you see hypokenesis know …

A

Ischemia

117
Q

If you see dyskenisis…

A

Aneurysm

118
Q

If you see akenesis…

A

Infarction

119
Q

Wall thickening:
Tickets and then thins

A

Artifact

120
Q

Wall thickening:
Doesn’t thickening

A

Infarct

121
Q

1st pass pharmaceuticals

A

DTPA
TECH
NOT MAA

122
Q

Normal 1st pass times

A

7-8 sec 10 sec abnormal, 15 sec hypertension

123
Q

Phase analysis

A

Functional image to determine electrical pathway thru heart

124
Q

How do you want to inject for 1st pass

A

Bolus
With 3 stop cock
NO Valsamic maneuver

125
Q

CO

A

Is the amount ejected per min

126
Q

Know this ef Calc formula

A

(Edv-esv)/(edv-bkg)

127
Q

Know this formula 60,000/hrx frames

A
128
Q

Label

A

1 septal wall slice
2 anterior wall
3 apex
4 posterior wall
5 base
6 lateral wall slice

129
Q

To eliminate activity on stress images EXCEPT for thallium, one should

A

Give the patient 8 oz whole milk

130
Q

Match the slices

A

Transverse to horizontal
Sagittal to vertical
Coronal to short axis

131
Q

Time between radiopharmaceutical injection and beginning of images for dual isotope mpi

A

5 to 10 mins

132
Q

First axis reconstructed

A

Transaxial

133
Q

Patient can eat for MPI after

A

Sestamibi injection

134
Q

When do you inject the pharm for mpi during exercise

A

One minute before end

135
Q

A female patient shows a fixed defects on her mpi Study. The most likely reason for the physician stating the patient has a previous myocardial infarction is because

A

The gated spect images showed no wall thickening at this location

136
Q

Label

A

1 apex slice
2 anterior wall
3 lateral wall
4 posterior wall
5 sagittal wall
6 base slice

137
Q

Way to remember heart slices

A

SA, A to B ALPS
V, S to L, AABS anterior, apex
H, P to A, ALBS apex, lat.