Table of Contents

Shock

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.