What reason is LDH low in pleural effusion

summary

You may not know this method of pleural effusion examination, and you don't know what LDH means. In fact, it is the abbreviation of lactate dehydrogenase. Some patients will be found to have low LDH content. Let's talk about the reasons for low LDH in pleural effusion.

What reason is LDH low in pleural effusion

First: lactate dehydrogenase (LDH) and its isoenzymes: the determination of LDH content in pleural effusion is helpful to the differential diagnosis of effusion and exudate. When the leakage was less than 200 U / L, the ratio of pleural fluid to serum was 200 U / L, and the ratio of pleural fluid to serum was more than 0. 6. It is found in pleural fluid caused by pulmonary infarction, lymphoma and some tumor metastasis.

Second, LDH is an index reflecting the degree of pleurisy. The higher the value is, the more obvious the inflammation is. When empyema occurs, the LDH level increases significantly, up to 30 times of normal serum. LDH and its isoenzyme ldh2 in malignant pleural effusion increased, while ldh4 and ldh5 in benign pleural effusion increased.

Third: lactate dehydrogenase (LDH) is a necessary examination to distinguish exudate from exudate. Generally, the degree of pleural inflammation is parallel to the LDH value of pleural effusion. The LDH isozyme of exudative pleural effusion is usually high in type 4 and 5, and about 1 / 3 of cancerous pleurisy is high in type 2.

matters needing attention

Therefore, we should pay more attention to this situation at ordinary times. It is very important to have a healthy living habit. Of course, we should also carry out some sports properly at ordinary times, so as to enhance our physical fitness and resistance, so as to reduce the chance of getting sick.