Acute heart failure is very dangerous in clinical practice. It is mainly caused by a sudden decrease in cardiac output, leading to insufficient perfusion in tissues and organs and acute blood stasis syndrome. The main clinical symptoms include severe respiratory distress, often accompanied by restlessness, profuse sweating, frequent coughing with pink frothy sputum, and in severe cases, sudden cardiac and respiratory arrest can occur. After the occurrence of acute heart failure, effective measures should be taken to alleviate symptoms such as respiratory distress. The most effective methods in clinical practice include strengthening the heart, promoting diuresis, and dilating blood vessels.