With a moderate course of the disease, changes appear in the lungs, which are visible on computed tomography. The degree of damage can be different. When talking about CT-1, it means that less than 25% of the lung volume is affected, CT-2 – 25-50%, CT-3 – 50-75%, CT-4 – more than 75%. More about changes in the lungs with
Another alarming symptom is decreased saturation… Saturation indicates the oxygen saturation level of the blood. Normal saturation values are above 95%, if they are lower, then this indicates a moderate severity of the disease.