Search results
Results From The WOW.Com Content Network
The immediate shock of the cold causes involuntary inhalation, which if underwater can result in drowning. The cold water can also cause heart attack due to vasoconstriction; [4] the heart has to work harder to pump the same volume of blood throughout the body, and for people with heart disease, this additional workload can cause the heart to ...
"Drowning is the process of experiencing respiratory impairment from submersion/immersion in liquid". [8] Near drowning is the survival of a drowning event involving unconsciousness or water inhalation and can lead to serious secondary complications, including death, after the event.
Diving disorders are medical conditions specifically arising from underwater diving. The signs and symptoms of these may present during a dive, on surfacing, or up to several hours after a dive. The principal conditions are decompression illness (which covers decompression sickness and arterial gas embolism ), nitrogen narcosis , high pressure ...
Salt water aspiration syndrome occurs when small amounts of salt water are inhaled or aspirated, unlike drowning and near-drowning which involve intake of large volumes of water. This condition can develop subtly over the course of an underwater dive [ 1 ] or happen with a single aspiration event. [ 2 ]
Similarly, scientific diving environmental impact should be estimated during planning, and be subject to acceptance by the relevant ethics committee. A basic understanding of the practical relevance of some environmental factors that influence diving operations is useful, such as: Algal bloom – Spread of planktonic algae in water
Diving physics, or the physics of underwater diving, is the basic aspects of physics which describe the effects of the underwater environment on the underwater diver and their equipment, and the effects of blending, compressing, and storing breathing gas mixtures, and supplying them for use at ambient pressure.
Drowning is a type of suffocation induced by the submersion of the mouth and nose in a liquid. Submersion injury refers to both drowning and near-miss incident. Most instances of fatal drowning occur alone or in situations where others present are either unaware of the victim's situation or unable to offer assistance.
In freediving and scuba diving this is usually found to be drowning. [103] In an analysis of recreational closed circuit rebreather deaths between 1998 and 2010, a somewhat arbitrary risk rating for each dive was allocated: [10] low risk, for open water dives to depths not exceeding 40 metres (130 ft), where all checks and tests were done