What happens if air is injected into a vein?

Air entering the bloodstream, followed by blocking its movement to the heart or brain in medicine, is called air embolism. What happens if air enters a vein? Fatal outcome. But, fortunately, not in all cases.

A tiny killer air bubble that landed in an artery and caused the instant death of a character is, for a moment, a very popular hero of detective stories and thrillers. A mysterious villain in a mask, a hood or a hat pulled over his eyes with a malicious grin lifts a syringe, and… the audience freezes in anticipation and anticipation… But what really happens if you introduce air into a vein?

What happens when air enters the bloodstream

If a small amount of air enters the bloodstream, nothing will happen. Maximum – at the injection site there will be a seal and a small hematoma. If there is a little more air, then weakness, dizziness, numbness of the tissues at the injection site and even fainting are guaranteed. If the amount of introduced air is more than 200 ml, then clogging of the vessels is possible and, as a result, a violation of the blood supply to organs.

Cardiac embolism can provoke a heart attack, and a stroke can occur with cerebral vascular embolism. But this is possible only with the introduction of air into a large vessel and at least with the above volume. A small number of small vesicles simply dissolve when they enter the bloodstream.

Proper air removal

Air is removed from the syringe by tapping the housing lightly. As soon as all the bubbles are collected in one air pocket, it must be squeezed out by lightly pressing the piston. Similar actions are performed by a nurse before placing a dropper on a patient. As for sophisticated medical equipment, it uses special filters that remove air automatically.

How to avoid the unpleasant consequences of intravenous injection

But, as they say, the salvation of drowning people is the work of the drowning people themselves.

Therefore, it is advisable for patients and patients to maintain the following simple recommendations to ensure their own safety:

  • seek help from medical institutions with good reviews;
  • Do not experiment with self-administration of drugs in the absence of experience and specialized education;
  • Do not trust people to do this without the appropriate qualifications;
  • in urgent cases, implying the need to independently carry out the necessary manipulations, carefully remove air from a syringe or dropper.

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