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Hemodynamics Flashcards

1
Q

High doses of nitro and nitroprusside reduces afterload but can also does what to CO while reducing afterload?

A

Increases CO

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2
Q

Pressors do what to preload?

A

Increases preload

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3
Q

Morphine does what to preload?

A

Decreases preload

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4
Q

Nitro does what to preload?

A

Decreases preload

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5
Q

Most sensitive indicator of cellular oxygenation?

A

Svo2

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6
Q

Normal central venous oxygen saturation (scvo2) parameters?

A

> 70%

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7
Q

Normal oxygen delivery (Do2) parameters?

A

900-1100

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8
Q

Normal oxygen consumption (Vo2) parameters?

A

250-350

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9
Q

Hypothermia does what to SVo2?

A

Increases Svo2

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10
Q

Paralysis does what to SVo2?

A

Increases SVo2

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11
Q

Low cardiac output does what to Svo2?

A

Decreases SVo2

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12
Q

Fevers and shivering does what to SVo2?

A

Decreases SVo2

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13
Q

Decreased hemoglobin does what to SVo2?

A

Decreases SVo2

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14
Q

Hypovolemia does what to SVo2?

A

Decreases SVo2

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15
Q

Presence of mitral valve insufficiency on a PAOP waveform when the PA catheter in inflation aka wedged will show what kind of waves?

A

V waves

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16
Q

Mitral valve insufficiency is associated with what kind of MI

A

Inferior MI

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17
Q

What type of arterial line waveform results is falsely decreased SBP and falsely increased DBP?

A

Over dampened waveform

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18
Q

What type of arterial line waveform results in falsely high SBP and falsely low DBP?

A

Under dampened waveform

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19
Q

As afterload increases what happens to CO?

A

CO decreases

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20
Q

Normal PAOP parameters?

A

8-12

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21
Q

Normal PA pressure parameters?

A

20/8 -30/15 map <20

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22
Q

Normal SVR parameters?

A

800-1200

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23
Q

Normal PVR parameters?

A

50-250

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24
Q

With cariogenic shock what happens with CVP?

A

CVP increases

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25
Q

Cardiogeneic shock does what to PA pressures?

A

PA pressures increase

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26
Q

With Cardiogenic shock what happens to CO?

A

CO decreases

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27
Q

With cardiogenic shock what happens with SVo2?

A

SVo2 decreases

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28
Q

With cardiogenic shock what happens to SVR and PVR?

A

SVR and PVR increases

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29
Q

With cardiogenic shock what happens to PA pressures and PAOP?

A

PA pressures and PAOP increases

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30
Q

With hypovolemic shock what happens to RAP and PAOP?

A

RAP AND PAOP DECREASES

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31
Q

With hypovolemic shock what happens to SVo2?

A

SVo2 decreases

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32
Q

With hypovolemic shock what happens to SVR?

A

SVR increases

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33
Q

With septic shock what happens to CVP?

A

CVP decreases

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34
Q

With septic shock what happens to PAP and PAOP?

A

PAP and PAOP decreases

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35
Q

With septic shock what happens to CO?

A

CO increases

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36
Q

With septic shock what happens to SVR?

A

SVR decreases

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37
Q

With septic shock what happens to SVo2?

A

SVo2 increases

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38
Q

With Late septic shock what happens to SVo2?

A

SVo2 decreases

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39
Q

With ARDS PAP increases d/t what?

A

Hypovolemia

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40
Q

With PE what happens to CO?

A

CO decreases

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41
Q

With cardiac tamponade CVP does what?

A

CVP increases

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42
Q

With cardiac tamponade PAP and PAOP does what

A

PAP and PAOP increases

43
Q

Does levophed have an effect on HR?

44
Q

Epinephrine increases what?

45
Q

Does neo have an effect on PAP or PAOP?

46
Q

Dobutamine does what to a BP?

A

Inc and Dec depending on dose

47
Q

Dobutamine does what to PAOP?

A

Decreases PAOP

48
Q

Dobutamine does what to HR?

A

Increases HR

49
Q

Milrinone does what to CO?

A

Increases CO

50
Q

Labetolol does what to CO?

A

Decreases CO

51
Q

PAOP is the measurement of what?

A

L ventricle (preload)

52
Q

CVP and PAOP are measurements of what?

53
Q

SVR is the measurement of what?

A

L ventricle ( afterload)

54
Q

PVR is the measurement of what?

A

R ventricle ( afterload)

55
Q

PVR and SVR are measurements of what?

56
Q

If CO becomes critically low BP will do what?

A

BP decreases

57
Q

Bradycardia is a result of what?

58
Q

First sign of compensation for low CO is what?

59
Q

Tachycardia decreases CO , d/t what?

A

Dec filling time

60
Q

What happens to CO when SV increases?

A

CO increases

61
Q

What value reflects L ventricular preload ?

62
Q

What value reflects R ventricular preload ?

A

CVP or RAP

63
Q

Term for the volume in the ventricle at the end of diastole?

64
Q

Term for the resistance again which the ventricles must pump to open aortic and pulmonic valves ?

65
Q

What increases contractility?

A

Dobutamine, dopamine 5-10 mcg/kg/min , primacor, epinephrine

66
Q

What decreases contractility?

A

Neg inotropes, beta blockers, calcium channel blockers, metabolic problems ( metabolic acidosis ), endotoxins of sepsis

67
Q

Most sensitive indicator of cellular oxygenation ( pulmonary artery)

68
Q

What is oxygen delivery value show?

A

CO , red blood cells, lung perfusion

If tissues aren’t getting adequate flow they will grab on to more oxygen and mixed venous drop

69
Q

Things to increase preload?

A

Fill the tank
Fluids ( crystalloids,colloids) , pressors

70
Q

Things to decrease preload?

A

Diuretics, dilators , nitrates, nitroprusside, morphine

71
Q

Things to Increase afterload?

A

Levophed, neo, high dose dopamine 11-20 mcg/kg/min, epi

72
Q

Things to decrease afterload?

A

Nitroprusside, ace inhibitors, hydralazine, calcium channel blockers, IABP, and nitro high doses

73
Q

What is CO?

74
Q

What is SV?

A

Preload, afterload , and contractility

75
Q

What is the PAOP wedge pressure a indirect look at?

A

Left side of heart

76
Q

CO and what are inversely related?

77
Q

How do you get a pulse pressure?

A

Sys-dia = pulse pressure

78
Q

CVP should be hooked up to which central line port?

79
Q

Cardiac output normal values?

80
Q

Cardiac index normal values?

A

2.5- 4 L/min

81
Q

Normal SV value?

A

50-100 mL/beat

82
Q

Normal stroke index value?

A

25-45 mL/beat

83
Q

RAP or CVP normal value?

A

2-6 mmHg
3-8 cm H2o

84
Q

Normal PAP value

A

20/8-30/15 mean <20

85
Q

Normal PAOP value?

86
Q

Normal SVR value?

87
Q

Normal PVR value?

88
Q

Normal CAPP value?

89
Q

Normal SVo2 value?

90
Q

Normal ScVo2 value?

91
Q

Normal Sao2 value?

92
Q

Normal arterial oxygen content value?

93
Q

Normal Do2 value?

94
Q

Normal Vo2 value?

95
Q

What is contractility?

A

Is the contractile force of the myofibrils , independent of preload and afterload. As contractility increases SC and CO increases.

96
Q

ScVo2 reading comes from where?

A

Superior vena cava

97
Q

SVo2 comes from where?

A

Pulmonary artery

98
Q

What increases SVo2?

A

Septic shock, hypothermia, paralysis

99
Q

What decreases SCo2?

A

Low cardiac output, decreased PAo2, increased o2 demand ( fever, shivering, seizures, and increased WOB)

100
Q

What is ScVo2 used to monitor?

A

Less invasive way to monitor the hemoglobin in the blood

101
Q

What decreased oxygen delivery ( Do2)?

A

Pump problems (heart)

102
Q

What lowers oxygen consumption (Vo2) ?

A

Septic shock

103
Q

What muscle has the greatest oxygen consumption?

A

Heart- myocardial oxygen
Will Inc with a drop in cardiac output

104
Q

If you see giant V waves what kind of problem is associated?

A

Mitral valve insufficiency (regurgitation)

CCRN (1 decks)

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