On the issue of CPR insufflation frequency

The latest guidelines are 30:2. Because a large number of studies in recent years have shown that 30:

2 Compared with the original 15:2 resuscitation effect, too much artificial respiration does not help but takes up the time of cardiac compression, and some scholars in Japan and the United States even recommend only cardiac compressions without artificial respiration.

I just flipped through the textbook.

It is 15:2 for a single and 5:1 for a double

At the end of 2005, the American Heart Association (AHA) released a new version of the CPR first aid guidelines, which were adjusted from 15:2 to 30:2

I'm confused, too.

According to the latest 2015 CPR guidelines, the standard CPR compression ventilation ratio is 30:2, that is, 2 rescue breaths for every 30 compressions (please do not understand it as 15 compressions followed by 1 insufflation, the two have different meanings). And the rate of chest compressions is 100 120 minutes.

Press before blowing.

Press 15 times to blow 2 times.

According to the current 2010 cardiopulmonary resuscitation guidelines, the compression-ventilation ratio of cardiopulmonary resuscitation is 30:2, and there is no need to worry about the frequency of blowing when chest compressions and artificial respiration are coordinated, you only need to remember a few parameters (in fact, it is more accurate to master the operation), artificial respiration blows for one second per blow, and you don't need to inhale deeply before blowing, just inhale normally; The rate of compressions is at least 100 compressions per minute (of course, due to the presence of rescue breaths in standard CPR, in fact, less than 100 compressions per minute, but this refers to the rate).

So, don't get bogged down in the calculations here.

In the current way of operation, the five sets of CPR end with two mouth-to-mouth rescue breaths (because each set of procedures is compressed first and then ventilated, with a compression-to-ventilation ratio of 30:2).

Hello, this is not accurate, each blow time during artificial respiration should be more than one second, the tidal volume should not be too large, you can see obvious chest ups and downs, and avoid excessive ventilation. High-quality cardiopulmonary resuscitation requirements: 1. Chest compressions should be fast and forceful, with a compression depth of 5-6cm and a compression frequency of 100-120 minutes.

Each compression should ensure that the chest rebounds sufficiently, and the number of compression interruptions and the duration of compression interruptions should be minimized, and each compression interruption should not last more than 10 seconds. Interruptions in compressions include removal of the airway foreign body, opening of the airway, noisy rescue breaths, endotracheal intubation, electrical defibrillation, checking the effect of resuscitation, and substitution compressions. Compress for up to 2 minutes, that is, when the bend is 5 cycles, it is necessary to replace the press, or when the presser is tired, change the presser to press in time, so as to avoid the pressure pressure quality from declining due to fatigue and bumping.

2. During artificial respiration, the blowing time should be more than one second each time, and the tidal volume should not be too large, and the obvious chest rise and fall can be seen to avoid excessive ventilation.

According to the analysis of the situation you described, during mouth-to-mouth artificial respiration, the insufflation volume is generally 800ml-1200ml, and the chest is observed to rise and fall, and each blow is about 2-3 seconds. Do not blow too hard to prevent inflatable digestive tract and lung damage. In the case of single and double resuscitation, rescue breaths should be performed in proportion.

Ignore other people's garbage answers.

Let me tell you:

1 second, 500-600ml.

Such as satisfied.