Hemodynamics
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each of the black spaces below before clicking
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| Total amount of blood volume in the venous system is? | 64%
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| Venous return is the amount of blood volume returning to the? | Right heart.
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| CI is CO based on? | Actual body size.
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| End systolic pressure is? | The amount of blood in the ventricle after ejection.
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| End diastolic pressure is? | The amount of blood in the ventricle after filling.
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| Indexed measurements allow the normals to be standardized therefore account for the patients different body sizes. | True.
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| Patients who develop A-fib or 3rd degree heart block, lose their atrial kick and? | CO decreases.
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| Cardiac Tamponade | Restricts the blood entering the heart.
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| Fick equation | CO= VO2/C(a-v)O2 x 10
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| Right atrium pressure. (RAP) | Measured with CVP or Swans.2 to 6 torr.
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| Right ventricle pressure. (RVP) | Measured with Swans.20 to 30/2 to 6 torr.
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| Pulmonary artery pressure. (PAP) | Measured with Swans.20 to 30/6 to 15 torr.Waveform has diacrotic notch.
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| Pulmonary capillary wedge pressure. (PCWP) | Measured with Swans. 4 to 12 torr.
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| Ejection fraction. | EF= SV/EDV If in the 30% range intolerance to exersise.
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| PAP looks at? | lungs.
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| PCWP looks at? | Left heart.
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| CVP looks at? | Right atrial pressure or fluid levels. Norm 2-6 torr.
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| Systemic Artery Blood Pressure (SABP)looks at? | Blood pressure thoughout the body.
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| Ventricular stroke work. | Amount of blood ejected with each beat.
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| CVP norm? | 2-6torr.
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| Cardiac Output QT norm? | 4-8 L/M
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| Cardiac Index (CI) | 2.5-4.5
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| Preload | The stretch on the ventricle muscle fibers before contraction.
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| Afterload | The resistance of external factors that oppose ventricular contraction.
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| Stroke volume is determined by? | Preload, afterload, and contractility.
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| Preload is created by? | End diastolic volume.
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| If there is no narrowing or dysfunction of the valve... | Pressures in the atrium will be the same as in the ventricles at the end of diastole.
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| Atrial contraction is... | 30% of cardiac output.
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| Afterloads two opposing factors? | Tension and impedance.
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| Intrathoracic become more negative.(vacume effect) | Increases filling and increases resistance to emptying of ventricles.
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| Increase in Ca causes? | spastic heart.
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| Decrease in K+ and Na causes? | Atrial fibrillation.
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Created by:
Christopher Franklin
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