Alanine aminotransferase (ALT): 43 U/L

Generally, alanine aminotransferase (ALT) refers to alanine transaminase. An ALT level of 43 U/L may result from physiological factors or pathological conditions such as viral hepatitis or autoimmune hepatitis. The specific analyses are as follows:

I. Physiological Factors

If a person consumes excessive alcohol over a long period, it can disrupt normal bodily functions, leading to accumulation of alanine aminotransferase in the body and elevated levels. Abstaining from alcohol usually allows the body to recover without requiring special treatment.

II. Pathological Factors

1. Viral Hepatitis

Patients with viral hepatitis may experience symptoms such as loss of appetite, aversion to greasy foods, and liver enlargement. When the viral load increases in the body, it can impair the excretion of alanine aminotransferase, causing elevated levels. Treatment under medical guidance may include medications such as lamivudine tablets, acyclovir dispersible tablets, and entecavir capsules.

2. Autoimmune Hepatitis

Autoimmune hepatitis causes abnormalities in the body's immune system, disrupting normal metabolism and resulting in an ALT level of 43 U/L, often accompanied by symptoms such as abdominal distension and reduced appetite. Under a doctor’s supervision, medications such as azathioprine tablets, prednisone acetate tablets, and methylprednisolone tablets may be prescribed for treatment.

In addition to the above causes, elevated ALT levels could also be due to alcoholic hepatitis, liver cirrhosis, liver cancer, or other conditions, which require timely medical evaluation and treatment.