Final Flashcards

1
Q

Normal CVP

A

2-6

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2
Q

Normal PAP

A

25/8 or 14

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3
Q

Normal PCWP

A

6-12

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4
Q

Normal CO

A

4-8

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5
Q

Normal SVR

A

1600

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6
Q

Normal PVR

A

200

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7
Q

Cardiac Output Standard Equation

A

HR x SV

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8
Q

Cardiac Output Fick Equation

A

VO2 / Ca-Cv x 10

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9
Q

SV Equation

A

CO/HR

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10
Q

Cardiac Index Equation

A

CO / BSA

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11
Q

PVR Equation

A

[(MPAP-PCWP) / CO] x 80

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12
Q

MPAP (MAP) Equation

A

Systolic + (Diastolic x 2) / 3

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13
Q

SVR Equation

A

[(MAP-CVP) / CO] x 80

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14
Q

Blood pressure moves from ______ to _________

A

high pressures to low pressures

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15
Q

Flow of Blood

A

r heart, lungs, l heart, systemic system

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16
Q

Why would CVP be low and how to fix

A

dehydration, hypovolemia or vasoconstriction. Fix with fluids or vasoconstriction drugs

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17
Q

Why would CVP be high and how do you fix it

A

fluid overload. fix with diuretic

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18
Q

CVP relates to the function of________________

A

right heart (RH Failure, Cor Pulmonale)

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19
Q

When PAP is high

A

may be due to blockage in lungs or left heart (pulmonary embolism, air embolism, pulmonary hypertension)

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20
Q

How to get PCWP reading

A

balloon must be inflated and wedged in the pulmonary artery

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21
Q

PCWP relates to the function of ___________

A

left heart (mitral valve stenosis, CHF, Pulmonary Edema, High PEEP

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22
Q

Increase in C(a-v)O2 means ___________ CO

A

decreased

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23
Q

Decreased C(a-v)O2 means ______________ CO

A

increased

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24
Q

How do you treat decreased Cardiac Output

A

cardiac inotropic and/or chronotropic medications

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25
SVR relates to the function of
left heart
26
PVR relates to the function of
right heart
27
PCWP is usually the same or lower than ___________
PA diastolic pressure
28
If (PAd-PCWP) is greater than 5, this indiciates
increased PVR
29
PAP greater than 35/15 means
pulmonary hypertension
30
What is preload
the filling pressure of the ventricle at the end of ventricular disatole
31
How is Pre-load estimated
by measrung the end-diastolic pressures. CVP and PAWP readings
32
What is contractility
the force that the ventricle generates during each cardiac cycle.
33
How is Contractility estimated
by using ejection fraction
34
Normal Ejection Fraction
65%-75%
35
Ejection Fraction formula
SV/EDV
36
What is After-load
resistance heart must overcome for blood flow to occur (PVR and SVR)
37
Resistance=
pressure/flow
38
Increased Vascular Pressure means _______ heart work
increased (opposite for decrease)
39
What is CVP
the pressure of blood in the right atrium or vena cava. ALso called RVEDP
40
What is SVR
a measure of resistance to blood flow through the systemic system circulation (left heart)
41
What is PVR
a measure of pulmonary vascular resistance and increases with pulmonary vasoconstriction, as seen in hypoxemia and acidosis (right heart)
42
Bubbling in chest tubes water seal indiates
a leak or bronchopleural fistula
43
How long do you leave a chest tube in
48hours AFTER air leaks resolve
44
What is a chest tube
allows you to meaure rate of bleeding (fluid), improves ventilation, allow for lung re-expansion
45
When is ETCO2 measured
at the end of exhalation
46
Indications for ETCO2 measurment
evaluate V/Q ratio, determine position of ETT, monior integrity of artificial airway
47
What is the normal difference in PaCO2 and ETCO2
usually 3-5
48
A sudden drop in O2 means
the vent disconnecred or the adapter is clogged with secreations
49
What is PvO2
oxygen usage through the body
50
What is SvO2
percent of oxygen that is in blood when it returns to the right atrium
51
What are the risks associated with injuries to C3 and C%
Diaphragmatic Paralysis
52
Normal MAP
70-100
53
Normal PVO2
30-40
54
Normal SV02
65-75
55
If ETCO2 is increasing, what happens to PaCO2
it increases
56
Indications for chest tube
pneumothorax, hemothorax, pleural effusion
57
Goals of a chest tube
to drain air or fluid
58
what is the collection chamber
collects fluid from the patient. subdivided into columns to assess the amount drained. color anf consistency
59
what is the water seal chamber
one way valve allowing air to escape and no re-enter pleural space. filled to 2cm of fluid. Water rise during spontaneous exhalation and falls during inspiration (opposite when patient is on ventiltior)
60
What is the suction control chamber
regulater amount of vacuum applied to chest tube. filled to a depth of 20cm of fluid.
61
Indications for ETCO2
to identify proper placement of ETT, to assess effectiveness of compressions during CPR, to continuously monitor CO2, to trend CO2