What are the causes of low sodium and chloride levels in a routine blood test?

Generally, low levels of sodium and chloride in routine blood tests are caused by insufficient dietary intake, excessive loss, or infectious diseases. The specific analysis is as follows:

1. Insufficient dietary intake

If one has poor eating habits or fails to replenish sodium and chloride according to the body's physiological needs during meals, it may lead to low sodium and chloride levels.

2. Excessive loss

When an individual does not drink enough water but experiences excessive sweating, increased urination, or repeated nausea, vomiting, and diarrhea due to certain reasons, excessive amounts of sodium and chloride may be lost, resulting in low sodium and chloride levels.

3. Infectious diseases

Infectious diseases may cause dysregulation of antidiuretic hormone levels, leading to impaired water excretion. This can result in dilutional hyponatremia and hypochloremia, thereby causing low sodium and chloride levels.

In addition, certain special conditions such as uremia, diabetes insipidus, and tumors may also lead to the above-mentioned situation. In summary, when low sodium and chloride levels occur, it is essential to promptly visit a hospital for relevant examinations and receive treatment as recommended by a physician.