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CVICU > Hemodynamics > Flashcards

Hemodynamics Flashcards

1
Q

SaO2

A

Arterial Oxygen Saturation
95-100

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2
Q

SvO2

A

Mixed Venous Saturation
60-80

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3
Q

ScvO2

A

Central Venous Oxygen Saturation
70

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4
Q

Arterial BP

A

Systolic 100-140
Diastolic 60-90

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5
Q

Mean Arterial Pressure

formula

A

70-105

SBP + (2xDPB)/3

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6
Q

RAP/CVP

A

Right Atrial Pressure/Central Venous Pressure

8-12

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7
Q

Right Ventricular Pressure RVP
s/d

A

RVSP 15-30
RVDP 2-8

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8
Q

Pulmonary Artery Pressure PAP
s/d

A

PASP 15-30
PADP 8-15

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9
Q

Mean Pulmonary Arterial Pressure

formula

A

9-18

PASP + (2xPADP)/3

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10
Q

Pulmonary Artery Occlusion Pressure PAOP

A

6-12

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11
Q

Left Atrial Pressure

A

LAP

4-12

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12
Q

Cardiac Output

A

HRxSV/1000

4.0-8.0 L/min

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13
Q

Cardiac Index

A

CO/BSA

2.5-4.0 L/min/m2

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14
Q

Stroke Volume

A

CO/HR x 1000

60-100ml/beat

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15
Q

Stroke Volume Index

A

CI/HR x 1000

33-47 ml/m2/beat

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16
Q

Stroke Volume Variation

A

10-15%

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17
Q

Systemic Vascular Resistance

A

800-1200 dynes

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18
Q

Systemic Vascular Resistance Index

A

1970-2390 dynes

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19
Q

Pulmonary Vascular Resistance

A

<250 dynes

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20
Q

Pulmonary Vascular Resistance Index

A

255-285 dynes

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21
Q

Left Ventricular Stroke Work

A

8-10

22
Q

Left Ventricular Stroke Work Index

A

50-62

23
Q

Right Ventricular Stroke Word

A

51-61

24
Q

Right Ventricular Stroke Word Index

A

5-10

25
Q

First method of compensation for low CO

A

Increase in HR

26
Q

HR increase to compensate for low CO is beneficial up to

A

120bpm

27
Q

Treat low HR with

A

Pacing
Atropine
Epinephrine (in ACLS)

28
Q

Treat high HR with

A

Adenosine (for SVT)
Cardioversion
Beta Blockers

29
Q

Preload

A

Volume in ventricle before squeezing
CVP

30
Q

Afterload

A

Resistance against forward flow
SVR or PVR

31
Q

Central Venous Pressure is the same as

A

Right Atrial Pressure

32
Q

CVP/RAP is decreased by _ shock

A

Hypovolemic

33
Q

CVP/RAP is increased by _ shock

A

cardiogenic

34
Q

Treat low CVP

A

Fluids + hypotension management

35
Q

Treat high CVP

A

Diuretics

36
Q

Increased volume increases CO up to a point. After that point, excess volume decreases CO due to

A

Fluid overload

37
Q

If SVR too low

A

Treat with pressers
levophed and vasopressin

38
Q

If SVR too high

A

Treat with vasodilators
ACE ARB CCB
Balloon pump

39
Q

The squeeze needed to drive cardiac output

A

Contractility

40
Q

Contractility is assessed with and _ and measured as _

A

Echo

EF = > 60

41
Q

Contractility is decreased by

A

Cardiomyopathy
Shock state
Fluid overload

42
Q

If contractility low treat with

A

Inotropes -
Epi
Dopamine
Dobutamine
Milrinone

Devices -
ECMO
Impella
VAD
Balloon pump

43
Q

PR Interval

A

0.12-0.22s

44
Q

QRS Duration

A

< 0.12

45
Q

QT Duration

A

men < or = too 0.45
women < or = too 0.47

46
Q

Right side HF symptoms

A

JVD
Peripheral dependent edema
Clear lung sounds
Elevated CVP

47
Q

Right side HF results in

A

Hepatomegaly
Splenomegaly
Anorexia

48
Q

Left side HF symptoms

A

S3 heart sounds
Crackles
Tachycardia

49
Q

Left side HF lung symptoms

A

Dyspnea
Hypoxemia
Cough
Frothy sputum
PAWP

aka WET LUNGS

50
Q

What arrhythmia is associated with L HF

A

AFIB

51
Q

PAWP

A

Pulmonary Artery Wedge Pressure

4-12

Indicates pressure in left ventricular end diastolic pressure

52
Q

For cardiogenic shock

A

Dobutamine/dopamine

INotrop
INcreases contractions

CVICU (3 decks)

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