trigger

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trigger

 [trig´er]
an event that stimulates initiation of a subsequent event or process.
flow trigger a trigger for initiating assisted ventilation, consisting of a mechanism for measuring the patient's inspiratory effort and starting of assisted ventilation when flow reaches a given level.
pressure trigger a trigger for initiating assisted ventilation, consisting of a mechanism for measuring pressure and starting assisted ventilation when pressure reaches a given level.
time trigger a trigger for initiating assisted ventilation, consisting of a mechanism that measures frequency of respirations and starts assisted ventilation when the respiratory frequency is at a given point.

trig·ger

(trig'ĕr),
Term describing a system in which a relatively small input turns on a relatively large output, the magnitude of which is unrelated to the magnitude of the input.

trigger

Etymology: D, trekker, that which pulls
a substance, object, or agent that initiates or stimulates an action.

trigger

Cell biology
An event resulting in a cascade of intracellular activities.

Forensics
The decision part of a firearm, the pulling of which, even if the gun being held is not loaded, is a critical element in a crime and a virtually indisputable sign of culpability.

Health legislation
An “if-then” clause placed in legislation, such that if certain actions do not occur by a predetermined date, then a specific action is taken. Triggers can be “hard” or “soft”, depending on the severity of the needed corrective measures.
 
Managed care
Any event(s) that causes a contingency plan to be implemented—e.g., a critical supplier does not deliver a product in an appropriate timeframe.
 
Psychiatry
A factor that initiates and aggravates a behaviour or response.
 
Pulmonary medicine
A factor that may exacerbate asthma; a stimulus which causes an increase in asthma symptoms and/or airflow limitation.
 
Vox populi
Any device or situation in which a minimal effort has a disproportionately great consequence.

trigger

Pulmonology A factor that may exacerbate asthma; a stimulus that causes an ↑ in asthma Sx and/or airflow limitation

trig·ger

(trig'ĕr)
A substance, insect, object, or agent that initiates or stimulates an action.

Patient discussion about trigger

Q. What is the ingredient in perfume or Cologne that will trigger an asthma attack? There is something in cologne/perfume that's not in body spray that triggers my asthma. I went out with a friend and he had on cologne and my asthma starting bothering me. Before going out my asthma hadn't bothered me in months because I stay away from things that may trigger an attack. This often happens with other things like bleach, ajax or any bad odor

A. Anything that irritates the nose and bronchi can cause an attack. No one really knows why...but it does. Cigarettes and pollution are common cause also.

Q. how can these trigger his episodes and what exactly has happened to him? My son is a bipolar patient. We took him to the doctor as his manic episode has started again. This episode was a high one as compared to his previous episodes. Previous episodes used to get triggered due to his work related stress. He keeps himself in routine which makes his life comfortable. Recently he went on a vacation with his colleagues. Once he was back I found his condition was worse and soon his episodes started again. His regular medicines were not of any help. So I took him to the doctor. His medicines were not changed except a new one was added. Doctor had told to reduce on any stress as much as possible. Strictly he has been told to reduce on anything which triggers stress like coffee, tea, high sugar intake, on cigarettes as well. How can these trigger his episodes and what exactly has happened to him?

A. Depending on the type of vacation he took it is possible that he drank a lot of alcohol which interfears with the effectivness of his medications. It is also probable that he did not keep the routine that he is on while on his vacation. If it was a tropical vacationhe could have spent mornings drinking coffee waking up from late nights. There are so many possibilities. Now that he is home he can begin his routine again, take his medications as perscribed and you will see that the episode passes. I hope that for you and your son the episode passes quickly and without too much damage.

Q. what is the difference between tender points and trigger points. I read somewhere in the net that there are two points called tender and trigger points which are one of the symptoms of fibromyalgia. Is that true? If so what is the difference between tender points and trigger points?

A. What you have read about tender and trigger points are true. A tender point hurts to the touch and causes some degree of pain in that area, while a trigger point may not necessarily be painful to the touch but causes a degree of pain to be felt in another area. Fibromyalgia patients typically have a number of tender points and, according to the American College of Rheumatology, the diagnostic criteria for fibromyalgia stipulates that an FMS sufferer should have pain upon palpation (i.e. touch) in eleven of the generally accepted eighteen tender points. A tender point is verified in a physical examination in which approximately nine pounds of pressure are applied by touch and the patient acknowledges that pain is felt.

More discussions about trigger
References in periodicals archive ?
Because life and disability insurance are common methods of funding based on death or disability triggers, a competent insurance agent can address this consideration and be a key member of the team developing the funding of a buy-sell contract.
On the downside, many archers have a problem with punching the trigger on index-finger releases.
First the process must perform change action appropriate to the trigger detected.
I've had an opportunity to test three different Elite 452 triggers and found all provided as-advertised crisp consistent 4.
This is all well and good for the really light trigger but when somewhat heavier triggers come into play, some hand and shoulder rifle contact is required and this is where as little as a one pound trigger pull disturbance can cause rifle movement on trigger release, particularly with lighter weight rifles.
Bill Geissele's triggers are robust and cut on an EDM machine.
Since then Elftmann Tactical has begun making more traditionally-styled triggers, and I recently had a chance to try two of their triggers--a Match unit as well as a 3-Gun trigger.
I asked Jeff about my combination, and he just laughed and said, "No one can leave my triggers alone
Some semi-auto triggers are built intentionally with smooth creep, sometimes called a sliding pull.
Very high-speed pulse width triggers are supported since the sample rate of the ADC really is the limit to the trigger.
In recent years, however, many third party triggers have emerged putting that problem to rest.
In particular, the language of the exceptions to GRA triggers does not fit squarely with the exchanges in certain asset reorganizations.