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Flashcards in Cardiovascular Deck (392)
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61

What is the Y-axis of the cardiac/vascular function curve?

CO/venous return

62

What is the X-axis of the cardiac/vascular function curve?

Right atrial pressure/EDV

63

What does the intersecting point of the cardiac/vascular curve mean?

CO = Venous return

64

Would a positive inotrope produce a left-shift or right-shift of the Cardiac/Vascular function curve?

left shift

65

Would HFor Digoxin OD produce a left-shift or right-shift of the Cardiac/Vascular function curve?

right shift

66

What would fluid infusion do to venous return? Would this produce a left-shift or right-shift on the Cardiac/Vascular function curve?

increase venous return

left-shift

67

What would fluid loss do to venous return? Would this produce a left-shift or right-shift on the Cardiac/Vascular function curve?

decrease

left-shift

68

What would spinal anesthesia do to venous return? Would this produce a left-shift or right-shift on the Cardiac/Vascular function curve?

decrease

left-shift

69

Do changes in TPR change RA pressure on a Cardiac/Vascular function curve? What does this mean?

no

X-intercept doesnt change

70

Would vasopressors produce an upward or downward shift of the Cardiac/Vascular function curve?

downward

71

Would vasodilators produce an upward or downward shift of the Cardiac/Vascular function curve?

upward

72

What valve closes before isovolumic contraction?

mitral

73

What valve opens as the end of isovolumic contraction?

aortic

74

What is the Y-axis on the pressure/volume curve?

LV pressure

75

What is the X-axis on the pressure/volume curve?

LV volume

76

In the left heart, what action produces an S1?

mitral valve closing

77

In the left heart, what action produces an S2?

aortic valve closing

78

In the left heart, what action produces an S3? When does an S3 occur?

mitral valve opening

beginning of diastole

79

What makes an S1 heart sound?

mitral and tricuspid valve closing

80

What makes an S2 heart sound?

aortic and pulmonic valve closing

81

What is an S3 heart sound associated with?

increased filling pressures

82

In what two patient populations is an S3 heart sound normal?

pregnant women and children

83

What makes an S4 heart sound?

atrial kick

84

What is an S4 associated with?

ventricular hypertrophy

85

What is the a-wave of the JVP?

atrial contraction

86

What causes a c-wave?

RV pushing into tricuspid valve

87

What causes the x--wave?

atrial relaxation

88

In what disease state is the X-wave present?

tricuspid regurgitation

89

What causes a v-wave?

RA filling with blood

90

What causes a y-wave?

blood filling RV from RA