NR 4050 Study Guide - Quiz Guide: Hypovolemia, Vascular Resistance, Cardiogenic Shock
Document Summary
Unit 1 exam review: 5 math; alterations in perfusion: shock ; alteration in perfusion: Shock: syndrome characterized by decreased tissue perfusion and impaired cellular metabolism, imbalance in supply/demand for o2 and nutrients. The exchange of oxygen and nutrients at the cellular level is essential to life. When a cell experiences a state of hypoperfusion, the demand for oxygen and nutrients exceeds the supply at the microcirculatory level. Overview of shock: circulatory system is unable to supply adequate amounts of oxygen to the tissues. Poor contractility decreases stroke volume thus decreasing cardiac output: oxygen delivery (do, oxygen consumption (vo, is the amount of oxygen delivered to the tissues, reflects the amount of oxygen extracted from the blood at the tissue level. It can be measured through evaluation of a blood sample, a mixed venous oxygen saturation (svo. Distributive ( included in distributive shock is septic shock, neurogenic shock and anaphylactic shock. 120- 80 = a pulse pressure of 40.