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Agonal Breathing

When a person is on the verge of death, they may show a very strange pattern of breathing. They will begin gasping for breath, take deep laboured breaths, begin to make strange noises and possibly have some muscle jerks (which may look like a seizure). The breathing makes it look as if the person is taking a deep breath and sighing, while gasping every now and then irregularly. This is called agonal breathing and it is most likely caused by an oxygen-starved brain sending weak signals to try kick up the respiratory drive for more oxygen. 

Agonal breathing is not uncommon in cases of cardiac arrest. It is important to note that agonal breathing is not an efficient form of breathing and thus it cannot be said that the victim is “breathing” when this occurs. Because it looks like the patient is taking deep breaths, bystanders may be fooled into thinking that they have been resuscitated and have begun breathing again. But this is not the case and the patient is still clinically dead. Ergo, one should not stop CPR even if the patient begins taking deep breaths and sighs. The presence of agonal breaths usually indicate a better outcome for the patient.

(Link to video examples of what agonal breathing looks like: http://emsbasics.com/2011/04/21/what-it-looks-like-agonal-respirations/)

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