In psychiatry, hyperventilation syndrome (HVS) is an episodic disorder that often presents with chest pain and a tingling sensation of the fingertips (paresthesia) and around the mouth, as well as deep and labored breathing (causing hyperventilation), although chronic but subtle hyperventilation can cause these symptoms too. Jump to: navigation, search Psychiatry is the branch of medicine that diagnoses, treats, and studies mental illness and behavioral conditions. ... In medicine, chest pain is a symptom of a number of serious conditions and is generally considered a medical emergency, unless the patient is a known angina pectoris sufferer and the symptoms are familiar (appearing at exertion and resolving at rest, known as stable angina). // Causes Cardiopulmonary Important cardiovascular and... Paresthesia (paraesthesia in British) is a sensation of tingling, pricking, or numbness of the skin with no apparent physical cause, more generally known as the feeling of pins and needles. ... For the play Breath by Samuel Beckett, see Breath (play). ... In medicine, hyperventilation, also known as tachypnea or hyperpnea, is the state of breathing faster or deeper than necessary, and thereby reducing the carbon dioxide concentration of the blood below normal. ... The word chronic has uses in many fields. ...

HVS can be part of a panic attack but, despite all the stigma, most patients are not putting on a show but are in true distress. The hyperventilation is self-promulgating as carbon dioxide (CO₂) levels fall and respiratory alkalosis (high blood pH) develop. The respiratory alkalosis leads to changes in the way the nervous system fires and leads to the paresthesiae, dizziness and perceptual changes that often accompany this condition. Jump to: navigation, search A panic attack is a period of intense fear or discomfort, typically with an abrupt onset and usually lasting no more than thirty minutes. ... Jump to: navigation, search Carbon dioxide is an atmospheric gas composed of one carbon and two oxygen atoms. ... Jump to: navigation, search General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... Jump to: navigation, search General Name, Symbol, Number oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ... Alkalosis refers to a condition reducing hydrogen ion concentration of arterial blood plasma. ... The title of this article begins with a capital letter, due to technical limitations of the MediaWiki software. ... The nervous system of an animal coordinates the activity of the muscles, monitors the organs, constructs and processes input from the senses, and initiates actions. ... Paresthesia (paraesthesia in British) is a sensation of tingling, pricking, or numbness of the skin with no apparent physical cause, more generally known as the feeling of pins and needles. ...

A rapid traditional intervention is to make the patient breathe into a paper bag, causing rebreathing and restoration of CO₂ levels. The same benefits can be obtained from deliberately slowing down the breathing rate by counting or looking at a watch. Some doctors do not advise the paper bag rebreathing method due to the chance of inhaling too much cabon dioxide. Jump to: navigation, search This article needs to be cleaned up to conform to a higher standard of quality. ... Jump to: navigation, search General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... Jump to: navigation, search General Name, Symbol, Number oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ... Counting is the mathematical action of adding (or subtracting) one, usually to find out how many objects there are or to set aside a desired number of objects (starting with one for the first object and proceeding with a one-to-one correspondence); however, counting is also used (primarily by... Jump to: navigation, search A watch A watch is a small portable clock that displays the time and sometimes the day, date, month and year. ... Inspiration Closed Circuit Diving Rebreather Description A rebreather is a type of breathing equipment that provides a breathing gas containing oxygen and recycles exhaled gas. ...