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A&P2lec4
CU Anatomy and Physiology II Dr hartman lecture 4
| Question | Answer |
|---|---|
| shock | a clinical syndrome of hypotension resulting from a decreased circulating blood volume. |
| shock may be caused by any of the following: | a decrease of blood volume within the vasculature, the inability of the heart to pump the blood through the circulation, changes in peripheral VR |
| Hypovolemic Shock | loss of fluid, but loss to areas of the body where there is no circulation. |
| cardiogenic shock | shock due to failure of heart to pump well, valves incompetent., |
| obstructive shock | block outside of the heart.pulmonary embolus, cardiac tamponade |
| distributive shock x3 | septic shock - Gram negative bacteria cause severe infection. Blood poisoning. Anaphylactic shock- dialated vessels become leaky, allergic reaction. neurogenic shock - lack of balance between para and sympathetic. emotional stress... |
| neurogenic shock - not spinal shock | neurogenic shock has vasovagal syncope |
| endocrine shock | too much/too little hormones. ex. hypothyroidism- reduces CO hypotension and respiratory insufficiency. thyrotoxicosis- lowers CO, acute adrenal insufficiency 0 result of discontinuing with drugs |
| compensated shock | first stage, induces baroreceptor reflex, stimulates RAA pathway, and/or relase of ADH |
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jseekins
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