Describe neurogenic shock, and septic shock w etiologies, patho, CM?
- Neurogenic: Results from loss of sympathetic activation of arteriolar smooth muscle. -- etiologies: spinal cord trauma, drug overdose, brain injury. -- patho: parasympatetic stimulation is unchecked allowing peripheral vasodilatation to occurs, therby decreasing MAP and causing hypotension, peripheral pooling and decrease CO and PL. -- CM: Bradycardia followed by tachycardia, hypothermia, and the others (oliguria, hypotension, and LOC varies)
- Septic shock: overwhlming systemic infection, usually from gram-negative, but could be gram-positive or fungal. It causes high CO, but still have insufficient blood volume. Therapy: aim to improve the distribution of blood. -- Etiologies: bacteremia (presence of bacteria in the blood); deptesimia: the bacteria have realeased toxins. -- patho: endotoxins in bacteria cells stimulate massive IS action, inflammation. This leads to peripheral vasodilation w hypotension. which causes cell hyoxia and increases capillary permeability. -- CM: Normotensive, and the others, tachy, tachypsnea, hyperthermia, shivering, N & V, etc.