what is a characteristic of all forms of shock they all are an imbalance of oxygen supply and demand resulting in decreased tissue perfusion and impaired cellular metabolism
what are the three parts of cardiac output that can be effected resulting in shock? Contractility (the pump) Afterload (the ...
NRSG 327 Test Questions and Correct Answers what is a characteristic of all forms of shock ✅they all are an imbalance of oxygen supply and demand resulting in decreased tissue perfusion and impaired cellular metabolism what are the three parts of cardiac output that can be effected resulting in shock? ✅Contractility (the pump) Afterload (the pipes) preload (the volume/Hgb) which types of shock affect contractility, after load and preload? ✅Contractility = cardiogenic Afterload = distributive preload = hypovolemic CO equation ✅HR x SV normal is ~ 5000ml/min what is preload ✅volume of blood in ventricles at end of diastole (based on venous return and ventricle ability to stretch, relax and fill) what is afterload ✅the resistance the ventricles pump against to eject blood (vessel tone, valves, viscosity) what is contractility ✅ability for the heart muscles to change the strength of contraction (pre load, SNS stem, amount of Ca++ in cells) what are the three stages of shock ✅- compensated (little or no S/S) - uncompensated (obvious S/S) - Irreversible (it's over) what is compensated shock? ✅When the body is able to maintain normal functioning through body mechanisms - mechanisms triggered by decreased tissue perfusion and cardiac output - CELLULAR DAMAGE STILL OCCURING what is uncompensated/progressive shock? ✅- Stage when compensatory mechanisms fail - O2 supply and demand become imbalanced - VS and other findings become obvious
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