这些急救知识，关键时刻可延长生命长度

Core Points - The importance of first aid knowledge is emphasized as it can significantly impact survival rates during emergencies, particularly in cases of cardiac arrest and stroke [1][3] - Timely intervention is critical, with a 10% decrease in survival rate for every minute of delay in rescue efforts [3][6] Group 1: Emergency Response Statistics - In China, there are approximately 550,000 cases of sudden cardiac death and over 13 million stroke patients annually [3] - The average response time for ambulances in Beijing is around 10 minutes, which is often insufficient for critical cases [5] Group 2: First Aid Techniques - The "golden 4 minutes" is crucial for brain health; irreversible damage begins after this period [6] - During emergencies, it is vital to keep the patient still and avoid unnecessary movements to prevent further complications [10][9] Group 3: Common First Aid Misconceptions - Many common first aid practices are actually dangerous and can worsen the situation, such as forcing objects into the mouth during a seizure [21][26] - Incorrect methods for treating choking, such as back blows, can exacerbate airway obstruction [15][17] - Misconceptions about treating heart attacks, like forceful coughing, can increase the risk of complications [22][24] Group 4: Specific Emergency Situations - For choking incidents, the Heimlich maneuver is recommended to clear the airway effectively [13][11] - In cases of fish bone obstruction, attempting to swallow food or drink can worsen the situation; medical assistance is advised [29][31] - For external bleeding, applying foreign substances like flour can lead to infections; proper wound care is essential [33][34]