Work of breathing (WOB) is the energy expended to inhale and exhale a breathing gas. It is usually expressed as work per unit volume, for example, joules/litre...

required for surface-supplied diving. The essential aspect of surface-supplied diving is that breathing gas is supplied from the surface, either from a specialised...

A self-contained breathing apparatus (SCBA) is a device worn to provide an autonomous supply of breathable gas in an atmosphere that is immediately dangerous...

decreased, or absent.[citation needed] Signs of increased work of breathing include: Noisy breathing (including grunting in infants) Retractions (the...

ventilation and decreases work of breathing. Pressure support improves patient ventilation. Pressure support decreases overall work of breathing when used in tandem...

Breathing (spiration or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment...

A breathing apparatus or breathing set is equipment which allows a person to breathe in a hostile environment where breathing would otherwise be impossible...

Diaphragmatic breathing, abdominal breathing, belly breathing, or deep breathing, is breathing that is done by contracting the diaphragm, a muscle located...

diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and therefore...

collapse, as occurs in obstructive sleep apnea, or to reduce the work of breathing in conditions such as acute decompensated heart failure. CPAP therapy...

rebreather is a breathing apparatus that absorbs the carbon dioxide of a user's exhaled breath to permit the rebreathing (recycling) of the substantially...

Stagger breathing (also staggered breathing) is a technique for choir singers and wind instrument players as part of an ensemble, by which no breath gaps...

(which is not narcotic and reduces work of breathing, but is more expensive and increases heat loss). The mixture of helium and oxygen with a 0% nitrogen...

the enclosed space to stimulate breathing. It assists breathing when muscle control is lost, or the work of breathing exceeds the person's ability. Need...

of this external dead space as small as possible, but this should not unduly increase the work of breathing, which can become critical in breathing apparatus...

can be used effectively during asthma attacks to slow breathing and reduce the work of breathing. Physicians, nurses, physical therapists, occupational...

altitude breathing apparatus is a breathing apparatus which allows a person to breathe more effectively at an altitude where the partial pressure of oxygen...

Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity"...

circulation and work of breathing. Exposure to cold water can result in the harmful cold shock response, the helpful diving reflex and excessive loss of body heat...

Circular breathing is a breathing technique used by players of some wind instruments to produce a continuous tone without interruption. It is accomplished...

Shallow breathing, thoracic breathing, costal breathing or chest breathing is the drawing of minimal breath into the lungs, usually by drawing air into...

hypercapnia, or both), and evidence of increased work of breathing. Respiratory failure causes an altered state of consciousness due to ischemia in the brain...

with the partial pressures of the inert components of the breathing gas used. It is a diving mode that reduces the number of decompressions divers working...

Hypoventilation, which is insufficient ventilation of the lungs due to any cause (fatigue, excessive work of breathing, barbiturate poisoning, pneumothorax, sleep...

A breathing gas is a mixture of gaseous chemical elements and compounds used for respiration. Air is the most common and only natural breathing gas, but...

English spelling: snorkelling) is the practice of swimming face down on or through a body of water while breathing the ambient air through a shaped tube called...

Hydrox, a gas mixture of hydrogen and oxygen, is occasionally used as an experimental breathing gas in very deep diving. It allows divers to descend several...

originally just scuba, is any breathing apparatus that is entirely carried by an underwater diver and provides the diver with breathing gas at the ambient pressure...

swelling inside the trachea, which interferes with normal breathing and produces the classic symptoms of "barking/brassy" cough, inspiratory stridor and a hoarse...

Asphyxia or asphyxiation is a condition of deficient supply of oxygen to the body which arises from abnormal breathing.[citation needed] Asphyxia causes generalized...