system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Lightening flash can cause injury by all of the following, except-
assistant
The correct answer is  Mechanism of injury in lightening burns are:-

Direct effect of high voltage current.
Heat, i.e. superheated air causing burns.
Expanded and displaced air, which acts as a blast wave.
Sledgehammer blow by compressed air pushed before the current (sledgehammer effect and blow death).