If the fluid drawn from pericardial effusion is red, it indicates that there is definitely bloody fluid seeping out. This situation is very serious, and it is recommended that hospitalization be chosen for treatment, as this can alleviate symptoms and improve the patient's cardiac function. If these symptoms persist, they may sometimes worsen, leading to heart failure. The patient may experience palpitations, chest tightness, difficulty breathing, and swelling in the lower limbs. Because pericardial effusion directly affects the function of the heart, treatment may involve the use of cardiotonic and diuretic medications. Mainly, medications that invigorate muscle strength are used to improve the myocardial oxygen consumption of the patient, thereby achieving the goal of alleviating clinical symptoms.