Shock
Classification
Hypotension Classification
1. hypovolemic: first sign is usually tachycardia. > 20–40% of blood volume loss must occur before perfusion of vital organs is impaired. Includes:
a) hemorrhage(external or internal)
b) bowel obstruction(with third spacing)
2. septic: most often due to gram-negative sepsis
3. cardiogenic: includes MI, cardiomyopathy, dysrhythmias (including A-fib)
4. neurogenic: e.g. paralysis due to spinal cord injury. Blood pools in venous capacitance vessels
5. miscellaneous
a) anaphylaxis
b) insulin reaction
Treatment
see Shock treatment.