Why does injecting air to your veins causes death to you !?

Answer 1

An air embolism, or more generally gas embolism, is a medical condition caused by gas bubbles in the bloodstream. Small amounts of air often get into the blood circulation accidentally during surgery and other medical procedures, but an air embolism which shows symptoms is very rare. Death usually occurs when a bubble of gas becomes lodged in the heart, stopping blood from flowing from the right ventricle to the lungs.

Answer 2

Maybe. It's sure to cause problems, though. Normally oxygen is carried around bound to hemoglobin, and nitrogen and CO2 are dissolved in the blood plasma. It's done at levels where there are no bubbles. If a bubble were to form, though, it would likely get lodged somewhere in the arterioles or capillaries. On a scale as small as that, the surface tension would be extremely strong, and the bubble would be very much stuck in place. If it occurred in a coronary artery, it would be functionally identical to a heart attack. In the brain, it would result in stroke. Anywhere else, it would result in ischemia (tissue death due to lack of blood flow). If it were in the right location or there were many bubbles, then it would result in death. The most trouble would come from injecting it into an artery. The air bubble would travel with oxygenated blood and get lodged along the way, blocking off tissues downstream (that are in need of oxygen). If you injected it into a vein, it would hurt, and might make its way to the heart (where it could get lodged in the lungs or passed along to an artery), but it's possible that it would get stuck along the way. Veins have very low pressure, and contain valves to prevent backflow. Veins (unlike arteries) are also branched in parallel, so blood would likely be able to bypass the blockage (this is why it is possible to take a vein out of the leg to use in a coronary bypass - if you used an artery, the leg would be in trouble). The bubble could get stuck long enough for it to dissolve into the venous blood, where it wouldn't cause any more problems.

Answer 3

An air embolism, or more generally gas embolism, is a medical condition caused by gas bubbles in the bloodstream. Small amounts of air often get into the blood circulation accidentally during surgery and other medical procedures, but an air embolism which shows symptoms is very rare. Death usually occurs when a bubble of gas becomes lodged in the heart, stopping blood from flowing from the right ventricle to the lungs.


Air embolism can occur whenever a blood vessel is open and a pressure gradient exists favoring entry of gas. Because the pressure in most arteries and veins is greater than atmospheric, an air embolus does not always happen when a blood vessel is injured. In the veins above the heart, such as in the head and neck, the pressure is less than atmospheric and an injury may let air in. This is one reason why surgeons must be particularly careful when operating on the brain, and why the head of the bed is tilted down when inserting or removing a central venous catheter from the jugular or subclavian veins. When air enters the veins, it travels to the right side of the heart, and then to the lungs. This can cause the vessels of the lung to constrict, raising the pressure in the right side of the heart. If the pressure rises high enough in a patient who is one of the 20% to 30% of the population with a patent foramen ovale, the gas bubble can then travel to the left side of the heart and on to the brain or coronary arteries.

Trauma to the lung can also cause an air embolism. This is often noticed after the patient is placed on a ventilator and air is forced into an injured vein, causing sudden death.

Air can be injected directly into the veins either accidentally or as a deliberate act. Examples include misuse of a syringe, and industrial injury resulting from use of compressed air. However, despite often being employed by writers of fiction as a method of murder, this will not suddenly stop the heart, nor cause instant death. Murder by air injection is an urban legend.

Air embolism can also occur during other types of surgery such as Caesarean section and orthopedic procedures.

[edit] Gas embolism in diving

Gas embolism is one of the diving disorders SCUBA divers sometimes suffer when they receive pressure damage to their lungs following a rapid ascent. It is named "gas" because the diver may be using a diving breathing gas other than air. The gas bubbles can impede the flow of oxygen-rich blood to the brain and vital organs. They can also cause clots to form in blood vessels.

Gas embolism and decompression sickness (DCS) are very difficult to distinguish, as they have very similar symptoms. The treatment for both is the same, because they are both the result of gas bubbles in the body. In a diving context, the two are often called decompression illness (DCI).

Answer 4

It's called an embolism, a blockage of blood flow, and in the case of air injection it doesn't necessarily mean that death will occur although it is potentially damaging to the local region of the injection. As a cause of death it would likely take quite a large amount of air carefully placed into the correct arteries... it is unlikely that it could be done with universal success and it is fantasy to think that it is an instant killer. In fact, air injection, carefully performed is an effective treatment for the elimination of varicose veins - so, you see, it can be useful, too.

((((( r u randy? ))))
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Answer 5

The air bubble can create an obstruction within a Cappilary or smaller blood vessel. if this happens in teh brain or heart it can lead to an embolism where Blood pools behind the blockage(in this case an air bubble) and causes the artery to swell and in some extreme cases burst.. while this is happening all the tissue downstream from the blockage is being starved of Oxygen and Vital nutrients. in the heart this would lead to a heart attack, in the brain it would lead to braindamage and or death. something similar can happen if you are diving in deep water and you rise too quickly.

Answer 6

it is foreign to your natural system. UNless removed quickly or rendered inactive, most foreign objects will kill you if entered in your Air is no different. Remember this if love is entered in your system for another person and you don't know how to use it effectively and lovingly, even love dies eventually so love with all your heart mind and spirit effectively and with respect.
good luck and much wisdom

Answer 7

because once it gets to your heart it causes all kinds of problems. The heart is not meant to pump air, and introducing it to the veisn causes havoc.

I'm not sure of the exact cause....but I know that it happens once the air bubble hits the heart and goes through the valves.

Answer 8

Air act as embolus (moving clot) and it will block blood supply to any vital organ such as heart, brain, kidney etc. resulting in the death of that organ.
Please see the webpage for more details on Air embolism.

Answer 9

creates an air bubble in your blood system and after a short bit that bubble reaches your heart and since your heart is a muscle its expecting liquid that is in a sealed environment...then BOOM a puff of air comes in....more or less exploding the heart.

think of it as a bad back fire from a car and it blows the muffler off.

Answer 10

your blood is pressurized. so when you add to much pressure your veins or heart will "burst". just like if you have low quality brake lines and you slam on the brakes, they lines will burst. same theory