Death from Hydrocution results due to the contact of skin with:-
Correct Answer: Water that is at least 5degC lower than body temperature
Description: Immersion syndrome (Hydrocution/submersion inhibition/cold water drowning): It refers to syncope resulting from cardiac dysrhythymias on sudden contact with water that is atleast 5degC lower than body temperature Mechanism: Vagal stimulation leading to asystolic cardiac arrest ('diving reflex'), or ventricular fibrillation secondary to QT prolongation after a massive release of catecholamine on contact with cold water. The resultant loss of consciousness leads to secondary drowning.
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Forensic Medicine
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