Severe pneumonia can be preceded by severe infection of the lungs, as well as effects on the function of other important organs of the body outside the lungs, resulting in unstable blood pressure, decreased blood pressure, impaired consciousness, blurred consciousness, coma, and even marked shortness of breath, as well as a marked decrease in urine output. After regular diagnostic tests and treatment, the above-mentioned conditions do not improve, such as high fever that does not subside, as well as respiratory dysfunction, loss of consciousness, plummeting blood pressure, and even cardiac arrest.