PAT 20A/B Lecture Notes - Lecture 12: Parasympathetic Nervous System, Microcirculation, Altered Level Of Consciousness
2 Nov 2017
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Document Summary
Shock is a physiological state with decreased tissue perfusion and impaired cellular metabolism. Imbalance between demand and supply of oxygen and nutrients. Leading to: anaerobic metabolism (leading to production and accumulation of lactic acid) Lethargy: determine the etiology and pathophysiology related to each type of shock: Shock caused by low blood flow: cardiogenic, hypovolemic. Shock caused by maldistribution of blood flow: occurs when blood is displaced in the vascular system causing a relative hypovolemia, caused either by loss of sympathetic tone or release of biochemical mediators, neurogenic, anaphylactic, septic. Infant 15 loose watery stools/day x 2 days. Gunshot to the back of the head. Hiding from a large man chasing you with a knife. Gunshot to the back of the head/umbilical region. Shock occurring when either systolic or diastolic dysfunction of the pumping action of the heart results in compromised cardiac output.
