Criteria for judging cardiac and respiratory arrest

The criteria for judging cardiac and respiratory arrest are first divided into primary and secondary. They are mainly caused by diseases of the heart and lung functions and other organs, such as myocardial infarction, coronary heart disease, respiratory tract burns, etc. Another reason is congenital problems with lung function or heart function, which will lead to cardiac and respiratory arrest in patients. Once the patient has this disease, he should take appropriate care and treatment measures to recover as soon as possible to ensure that there may be some complications in the body, which needs to be understood clearly.

Pathogenesis

From the perspective of the occurrence mechanism, cardiac and respiratory arrest can be roughly divided into two categories: primary and secondary.

Primary

Primary refers to those caused by diseases of the heart and lungs themselves, such as myocardial infarction, coronary heart disease, pulmonary infarction, respiratory tract burns, respiratory tract obstruction, etc.

Secondary

Secondary means that the heart and lung organs themselves are normal, but due to diseases in other parts or organs, pathological changes in the whole body occur, resulting in cardiac and respiratory arrest, such as severe trauma, electric shock, drowning, shock, poisoning, acid-base imbalance, electrolyte disorder, autonomic nervous system disorder, etc. But no matter what the cause is, it is caused by direct or indirect mechanisms such as reduced coronary perfusion, arrhythmia, weakened myocardial contractility or decreased cardiac output.

Rescue methods

If a patient is found to have cardiac and respiratory arrest, he should be placed in a supine position immediately.

1. Determine whether the patient is conscious.

2. Check whether the aorta is pulsating.

3. Observe for breathing.

If none of the above is present, it should be considered as cardiac arrest and the patient should be given CPR (cardiopulmonary resuscitation) immediately.

A. Open airway

The first aider presses the forehead with his right hand to tilt the head back and lifts the chin upward with his left hand. At the same time, use your fingers to remove foreign objects from the patient's mouth and nasal cavity.

B. Artificial respiration

Pinch the patient's nose and perform mouth-to-mouth artificial respiration.

C. Chest compression

Press the base of your palm on the patient's sternum, at the midpoint of the line connecting the two breasts. Frequency: 100 times/min. Press to a depth of 4 to 5 cm.

After every 30 compressions, artificial respiration should be performed twice. After 5 consecutive cycles, the patient's breathing and circulation signs should be reassessed.