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Acute onset of breathing problems caused by fluid accumulation in lung extravascular spaces induced by immersion, usually in cold water, often with intense physical exertion. Symptoms reported developed during physical activity and usually include dyspnoea/shortness of breath and a cough, often haemoptysis, occasionally chest tightness, chest ...
The most common symptom of pulmonary edema is dyspnea and may include other symptoms relating to inadequate oxygen such as fast breathing , tachycardia and cyanosis. Other common symptoms include coughing up blood (classically seen as pink or red, frothy sputum), excessive sweating, anxiety, and pale skin.
Decompression sickness can occur after an exposure to increased pressure while breathing a gas with a metabolically inert component, then decompressing too fast for it to be harmlessly eliminated through respiration, or by decompression by an upward excursion from a condition of saturation by the inert breathing gas components, or by a ...
The chamber is pressurised with air to 3.7 bars (370 kPa; 54 psi). The subject in the centre is breathing 100% oxygen from a mask. Although oxygen is essential to life, in concentrations greater than normal it becomes toxic, overcoming the body's natural defences (antioxidants), and causing cell death in any part of the body.
Leakage of water into the breathing loop of a rebreather, which dissolves alkaline material used to chemically remove carbon dioxide from exhaled air. This contaminated water may move further along the breathing loop and reach the diver's mouth, where it may cause choking, and in the case of strong alkalis, caustic corrosion of the mucous ...
Shortness of breath (SOB), known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity", and recommends evaluating dyspnea by assessing the intensity of its distinct ...
Unlike drowning or near-drowning, it does not involve ingestion of large volumes of water. It often results from faulty diving equipment or improper breathing techniques, allowing fine water droplets to reach the lower respiratory tract. The condition begins with cough and shortness of breath, followed by shivering, fever, and other systemic ...
Barotrauma is physical damage to body tissues caused by a difference in pressure between a gas space inside, or in contact with, the body and the surrounding gas or liquid. [1] [2] The initial damage is usually due to over-stretching the tissues in tension or shear, either directly by an expansion of the gas in the closed space or by pressure difference hydrostatically transmitted through the ...