What is the cause of cyanosis?

summary

Cyanosis, also known as cyanosis, refers to the skin and mucous membrane cyanosis caused by the increase of deoxygenated (reduced) hemoglobin in the blood or abnormal hemoglobin derivatives in the blood. In the thin skin, less pigment, capillary rich peripheral parts, such as tongue, lip, nose, cheek, nail bed. What is the cause of cyanosis?

What is the cause of cyanosis?

The reason of cyanosis is mainly caused by respiratory failure caused by heart and lung diseases, ventilation and ventilation dysfunction, and SaO2 reduction caused by insufficient pulmonary oxygen cooperation. This kind of cyanosis is characterized by systemic, involving not only the skin of the limbs and face, but also the skin of the trunk and mucous membrane, but the skin of the affected part is warm.

Pulmonary cyanosis: it is caused by respiratory insufficiency and insufficient pulmonary oxygenation. Common in a variety of serious respiratory diseases, such as laryngeal, tracheal, bronchial obstruction, pneumonia, obstructive emphysema, diffuse pulmonary fibrosis, pulmonary congestion, pulmonary edema, acute respiratory distress syndrome, pulmonary embolism, primary pulmonary hypertension, etc;

Peripheral cyanosis: this kind of cyanosis is often caused by the disorder of peripheral circulation. It is characterized by cyanosis, which often appears at the end of the limbs and the drooping parts. These parts of the skin is cold, but if given massage or heating, make the skin warm, cyanosis can subside.

matters needing attention

Hemoglobin sulfide is acquired. Cyanosis occurs when hemoglobin sulfide in the blood reaches 5g / L (0.5g / dl) after taking some sulfur-containing drugs or chemicals. However, it is generally believed that constipation or the formation of a large amount of hydrogen sulfide in the intestine by taking sulfur-containing drugs is the prerequisite for the patients with this disease.