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8 Cards in this Set
- Front
- Back
What does Cardiac output measure?
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Qt or CO measures output of the L ventricle to the systemic arterial circulation.
N Values=5 liters/min (4-8Lpm) |
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What does PCWP represent,the pulmonary venous drainage back to the L heart and is referred to and estimate what?
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A)L atrial pressure
L atrial filling pressure L side pre-load L Ventricular filling pressure L Ventricular end-diastolic pressure PAP diastolic value (8 mmhg)can be used to estimate the PCWP(*mmhg) when balloon will not properly inflate and catheter cannnot be wedged |
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Relationship between the PCWP and some clinical problems?
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Clinical Problem: PCWP
1)mitral valve stenois:increas 2)CHF= increase 3)L heart failure: increase |
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What is the comparison of Pcwp and Pap used for?
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To differentiate between cardiac and non cardiac pulmonary edema.
A)Increased Pcwp and Increased Pap= cardiac or cardogenic heart. B)N Pcwp and Increased Pap= Non cardiac or non cardiac lungs. |
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1)Normal PCWP Valves?
2)N PAP Values? 3)CVP N Values? |
1)8 mmhg (4-12)range
2)Systolic=25mmhg Diastolic=8mmhg Mean=14mmhg 3)2-6mmgh(4-12)cmh20) |
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Part2
Clinical Assessment of Hemodynamics. |
Pathology:
1)R heart Failure: cvp=^increase,pap=N/Decrease, pwcp=N/decrease,qt=N 2)Cor Pulmonale: cvp=^increase,pap=N/decrease, pwcp=N/decrease,qt=N 3)Lung Disorders: PulmonaryEmbolism, Pulmonary Hypertension, Air embolism=cvp=Increase, pap=^increase,pwcp=N/decrease, qt=N |
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Cardiac Index:CI
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Is cardiac output(QT) divided by the body surface area(BSA)in meters=squared(m2)
CI=QT/BSA Normal Values= N adult range is:2.5-4.0/liters/min/m2 |
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Cardiac Output Equations
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1) fick equation:
QT=V02/C(a-v)02(10) 2)Stroke Volume Equation: QT=heartrate x Stroke Volume 3)Thermal Dilution: (cold saline injection) |