| 释义 |
choking
choke C0317900 (chōk)v. choked, chok·ing, chokes v.tr.1. To interfere with the respiration of by compression or obstruction of the larynx or trachea.2. a. To check or slow down the movement, growth, or action of: a garden that was choked by weeds.b. To block up or obstruct by filling or clogging: Mud choked the drainpipe.c. To fill up completely; jam: Major commuter arteries were choked with stalled traffic.3. To reduce the air intake of (a carburetor), thereby enriching the fuel mixture.4. Sports To grip (a bat or racket, for example) at a point nearer the hitting surface.v.intr.1. To have difficulty in breathing, swallowing, or speaking.2. To become blocked up or obstructed.3. Sports To shorten one's grip on the handle of a bat or racket. Often used with up.4. To fail to perform effectively because of nervous agitation or tension, especially in an athletic contest: choked by missing an easy putt on the final hole.n.1. The act or sound of choking.2. a. Something that constricts or chokes.b. A slight narrowing of the barrel of a shotgun serving to concentrate the shot.3. A device used in an internal-combustion engine to enrich the fuel mixture by reducing the flow of air to the carburetor.4. The fibrous inedible center of an artichoke head.Phrasal Verbs: choke back To hold back; suppress: choked back his tears. choke off To bring to an end as if by choking: "Treasury borrowing of existing savings would drive up the interest rate and choke off economic activity" (Paul Craig Roberts). choke up To be unable to speak because of strong emotion.
[Middle English choken, short for achoken, from Old English āceōcian : ā-, intensive pref. + cēoce, cēace, jaw, cheek.]choking (ˈtʃəʊkɪŋ) adjcausing breathing difficulties; suffocatingchok•ing (ˈtʃoʊ kɪŋ)
adj. 1. (of the voice) husky and strained, esp. because of emotion. 2. causing the feeling of being choked: choking gas fumes. [1560–70] chok′ing•ly, adv. Thesaurus| Noun | 1. |  choking - a condition caused by blocking the airways to the lungs (as with food or swelling of the larynx)disorder, upset - a physical condition in which there is a disturbance of normal functioning; "the doctor prescribed some medicine for the disorder"; "everyone gets stomach upsets from time to time" | | 2. |  choking - the act of suffocating (someone) by constricting the windpipe; "no evidence that the choking was done by the accused"strangling, strangulation, throttlingsuffocation, asphyxiation - killing by depriving of oxygen |
TranslationsIdiomsSeechokechoking
choking[′chōk·iŋ] (fluid mechanics) The condition prevailing in compressible fluid flow when the upper limit of mass flow is reached, or when the speed of sound is reached in a duct. choking
Choking DefinitionChoking is the inability to breathe because the trachea is blocked, constricted, or swollen shut.DescriptionChoking is a medical emergency. When a person is choking, air cannot reach the lungs. If the airways cannot be cleared, death follows rapidly.Anyone can choke, but choking is more common in children than in adults. Choking is a common cause of accidental death in young children who are apt to put toys or coins in their mouths, then unintentionally inhale them. About 3,000 adults die each year from choking on food.People also choke because infection causes the throat tissue to swell shut. It is believed that this is what caused George Washington's death. Allergic reactions can also cause the throat to swell shut. Acute allergic reactions are called anaphylactic reactions and may be fatal. Strangulation puts external pressure on the trachea causing another form of choking.Finally, people can choke from obstructive sleep apnea. This is a condition where tissues of the body obstruct the airways during sleep. Sleep apnea is most common in obese men who sleep on their backs. Smoking, heavy alcohol use, lung diseases such as emphysema, and an inherited tendency toward a narrowed airway and throat all increase the risk of choking during sleep.Causes and symptomsThere are three reasons why people choke. These are:- mechanical obstruction
- tissue swelling
- crushing of the trachea.
Regardless of the cause, choking cuts off the air supply to the lungs. Indications that a person's airway is blocked include:- the person cannot speak or cry out
- the person's face turns blue from lack of oxygen
- the person desperately grabs at his or her throat
- the person has a weak cough and labored breathing that produces a high-pitched noise
- the person has all of the above symptoms, then becomes unconscious
- during sleep, the person has episodes of gasping, pauses in breathing, and sudden awakenings.
DiagnosisDiagnosing choking due to mechanical obstruction is straightforward, since the symptoms are obvious even to an untrained person. In choking due to infection, the person, usually a child, will have a fever and signs of illness before labored breathing begins. If choking is due to an allergic reaction to medication or insect bites, the person's earlobes and face will swell, giving an external sign that internal swelling is also occurring.Choking due to sleep apnea is usually diagnosed on reports of symptoms by the person's sleep partner. There are also alarm devices to detect the occurrence of sleep apnea. Eventually sleep may be interrupted so frequently that daytime drowsiness becomes a problem.TreatmentChoking, except during sleep apnea, is a medical emergency. If choking is due to allergic reaction or infection, people should summon emergency help or go immediately to an emergency room. If choking is due to obstructed airways, the Heimlich maneuver (an emergency procedure in which a person is grasped from behind in order to forcefully expel the obstruction) should be performed immediately. In severe cases a tracheotomy (an incision into the trachea through the neck below the larynx) must be performed.Patients who suffer airway obstruction during sleep can be treated with a device similar to an oxygen mask that creates positive airway pressure and delivers a mixture of oxygen and air.PrognosisMany people are treated successfully for choking with no permanent effects. However, if treatment is unsuccessful, the person dies from lack of oxygen. In cases where the airway is restored after the critical period passes, there may be permanent brain damage.PreventionWatching children carefully to keep them from putting foreign objects in their mouth and avoiding giving young children food like raisins, round slices of hot dogs, and grapes can reduce the chance of choking in children. Adults should avoid heavy alcohol consumption when eating and avoid talking and laughing with food in their mouths. The risk of obstructive sleep apnea choking can be reduced by avoiding alcohol, tobacco smoking, tranquilizers, and sedatives before bed.ResourcesOrganizationsAmerican Heart Association. 7320 Greenville Ave. Dallas, TX 75231. (214) 373-6300. http://www.americanheart.org.Key termsTrachea — The windpipe. A tube extending from below the voice box into the chest where it splits into two branches, the bronchi, that go to each lung.Tracheotomy — The surgical creation of an opening in the trachea that functions as an alternative airway so that the patient may breathe.chok·ing (chōk'ing) Upper airway obstruction resulting from a foreign object in the trachea or oropharynx, laryngeal spasm or edema, or external compression of the neck. A life-threatening situation such as asphyxia, hypoxia, and death may occur if the victim is unable to clear the airway by coughing. The inability to speak indicates a complete airway obstruction. The universal sign for choking is the grasping of the throat by the person choking.
See also: Heimlich maneuverchoking Partial or total obstruction of the main air passage (the LARYNX or TRACHEA) by foreign body or external pressure. This induces a protective COUGH response which often clears the obstruction.choking
Synonyms for chokingnoun a condition caused by blocking the airways to the lungs (as with food or swelling of the larynx)Related Wordsnoun the act of suffocating (someone) by constricting the windpipeSynonyms- strangling
- strangulation
- throttling
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