Shock [Neurosurgery Wiki]

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====== Shock ======

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===== Classification =====

[[Hypovolemic shock]].

[[Septic shock]].

[[Cardiogenic shock]].

[[Neurogenic shock]].

[[Anaphylaxis]].

Insulin reaction

====== 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]].