9137568
Descrição
FlashCards por Victoria Wright, atualizado more than 1 year ago
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Criado por Victoria Wright
mais de 7 anos atrás
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| Questão | Responda |
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Examples for 1?
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A - Inotrophy 1 - Catecholamines, digoxin ⊕ |
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Examples for 2?
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A - Inotrophy 2 - Uncompensated HF, narcotic overdose, sympathetic inhibition ⊝ |
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Examples for 3?
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B - Venous return 3 - Fluid infusion, sympathetic activity ⊕ |
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Examples for 4?
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B - Venous return 4 - Acute hemorrhage, spinal anesthesia ⊝ |
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Examples for 5?
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C - Total peripheral resistance 5 - Vasopressors ⊕ |
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Examples for 6?
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Exercise, AV shunt ⊝ |
| What does the intersection of curves on the graph indicate? | Operating point of heart (ie, venous return and CO are equal) |
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What is the effect shown on the Introphy graph?
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Changes in contractility --> altered CO for a given RA pressure (preload). |
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What is the effect shown on the Venous Return graph?
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Changes in circulating volume or venous tone ---> altered RA pressure for a given CO. Mean systemic pressure (x-intercept) changes with volume/venous tone. |
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What is the effect shown on the Venous Return graph?
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At a given mean systemic pressure (x intercept) and RA pressure, changes in TPR ---> altered CO. |
| What is the following an example of? HF decreased inotropy ---> fluid retention to increase preload to maintain CO | Changes that occur in tandem and are compensatory |
| What is the following an example of? exercise increased inotropy and decreased TPR to maximize CO | Changes that occur in tandem and are reinforcing |
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