Inadvertent perioperative hypothermia

In Mild Hypothermia The body seeks to diminish peripheral heat loss and preserve body temperature by peripheral vasoconstriction, resulting in the skin becoming cold and mottled. The blood pressure and pulse increase in order to circulate blood to the extremities, and cardiac output is increased by 400% 500%, this extra effort may result in cardiac arrhythmia. Respiration and oxygen consumption are increased, leading to shivering. A shivering patient requires supplemental oxygen. The suppression of anti-diuretic hormone (adreno-corticotropic hormone) induces a cold diuresis and dehydration occurs within two hours. Liver function is reduced, leading to impaired drug metabolism.