Urea nitrogen refers to blood urea nitrogen. Low blood urea nitrogen may be caused by drinking too much water before the test, insufficient protein intake, liver damage, etc. The former two are mostly not serious, while the latter needs to be combined with the results of liver function and other tests in order to determine whether it is serious or not.
1. Drinking too much water before the test: If the patient drinks a lot of water before the blood urea nitrogen test, the blood urea nitrogen may be low. This is generally not a serious condition, as the patient has no symptoms.
2. Insufficient protein intake: If you don’t pay attention to nutritional matching, resulting in insufficient protein intake, low urea nitrogen may also occur, and the patient may be malnourished, and timely supplementation can improve the situation, which is usually not serious.
3. Liver damage: If the patient has cirrhosis, alcoholic hepatitis and so on, resulting in liver function damage, may also appear in the blood urea nitrogen is low. If the blood urea nitrogen level is significantly reduced, and the patient has symptoms such as decreased appetite and jaundice, it is more serious and requires timely treatment.
If the patient has a low urea nitrogen, it is recommended to improve the relevant examination under the guidance of the doctor to clarify the cause of the disease and standardize the treatment.