{"id":11167,"date":"2025-12-22T15:16:31","date_gmt":"2025-12-22T13:16:31","guid":{"rendered":"https:\/\/medilab.km.ua\/?p=11167"},"modified":"2026-04-20T18:53:29","modified_gmt":"2026-04-20T15:53:29","slug":"blood-biochemistry-on-a-fasting-stomach-how-to-properly-pass-the-analysis-and-what-results-it-shows","status":"publish","type":"post","link":"https:\/\/medilab.km.ua\/en\/blood-biochemistry-on-a-fasting-stomach-how-to-properly-pass-the-analysis-and-what-results-it-shows\/","title":{"rendered":"Fasting blood biochemistry: how to take the test correctly and what the results show"},"content":{"rendered":"
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Fasting blood biochemistry is a basic laboratory test that allows you to assess the functioning of internal organs, metabolism, and the general condition of the body. Biochemical indicators are often the basis for establishing a diagnosis, monitoring treatment, or preventive examination, even in the absence of pronounced symptoms.<\/p>\n

An important condition for the reliability of this analysis is to donate blood on an empty stomach. Eating triggers a number of biochemical processes that can significantly affect the results and lead to misinterpretation.<\/p>\n

What does blood biochemistry show?<\/h3>\n

Biochemical blood analysis reflects the functional state of various body systems. It allows you to detect hidden disorders even before the appearance of clinical manifestations of diseases.<\/p>\n

Most often, blood biochemistry includes the following indicators:<\/p>\n

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\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Indicator<\/th>\nWhat evaluates<\/th>\nWhat can it indicate?<\/th>\n<\/tr>\n<\/thead>\n
Glucose<\/a><\/td>\nCarbohydrate metabolism<\/td>\nDiabetes mellitus, impaired glucose tolerance<\/td>\n<\/tr>\n
ALT<\/td>\nLiver cells<\/td>\nHepatitis, toxic liver damage<\/td>\n<\/tr>\n
AST<\/td>\nLiver, heart, muscles<\/td>\nLiver disease, heart muscle<\/td>\n<\/tr>\n
Bilirubin<\/td>\nBile pigment metabolism<\/td>\nBile outflow disorders, liver damage<\/td>\n<\/tr>\n
Creatinine<\/td>\nKidney function<\/td>\nKidney failure<\/td>\n<\/tr>\n
Urea<\/a><\/td>\nProtein metabolism<\/td>\nKidney dysfunction<\/td>\n<\/tr>\n
Total protein<\/td>\nProtein metabolism<\/td>\nInflammation, protein deficiency<\/td>\n<\/tr>\n
Cholesterol<\/a><\/td>\nLipid metabolism<\/td>\nRisk of atherosclerosis<\/td>\n<\/tr>\n
Triglycerides<\/td>\nFat metabolism<\/td>\nMetabolic disorders<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

According to Mayo Clinic<\/span><\/span>, it is the biochemical blood test that is the key tool for the early detection of liver and kidney diseases and metabolic disorders.<\/p>\n

Why should blood biochemistry be taken on an empty stomach?<\/h3>\n

After eating, blood glucose, fat, and certain enzymes temporarily increase. This is a normal physiological response, but it distorts laboratory results.<\/p>\n

The main reasons for taking the test on an empty stomach:<\/p>\n