General blood test This laboratory analysis
allows you to know in particular the level of hemoglobin in red blood, the number of red blood cells, white blood cells and platelets, and leukocytic formula. In other words, by donating blood for a general analysis, the patient will give the doctor the opportunity to identify anemia or inflammatory processes in the body.
Different blood studies are very widely used in modern medicine, so give a pretty clear idea of the functional state of almost all organs and systems of the patient.
In the general blood test, the study determines the value of several indicators at once – this occurs with the help of automatic hematological analyzers. Increased levels of white blood cells (white blood cells), for example, indicate the presence of inflammatory processes in the body, and increased lymphocyte numbers are observed in various viral infections.
According to the results of biochemical blood test, doctors are usually given the opportunity to objectively assess the functional state of internal organs and activities of different systems. In particular, this study allows to judge how the kidneys, liver, secretive system work, and whether there are inflammatory or rheumatic processes in the patient’s body. Biochemical analysis is also applied to reveal certain metabolic disorders (in particular water-salt metabolism) or imbalance of trace elements.
Among the main indicators that are determined in the biochemical study are:
– glucose levels (testifies to liver, pancreas and adrenal glands, allows you to draw conclusions about carbohydrate metabolism, etc.) ,
– protein (reduced content may indicate problems in liver and kidney activity, improper nutrition, and elevated – inflammatory processes or acute infectious diseases, and other pathological conditions, such as burn disease),
beta-globulins (deviations from the norm occur when fat metabolism
is impaired), bilirubin (an indicator of how good liver functions),
– cholesterol (increases during the development of atherosclerosis, decreases due to failures in the hormonal system and bile acid deficiency) and a number of others.
Based on the results of biochemical blood test, the quality of liver and kidneys is determined It also helps to identify active inflammatory processes and various metabolic disorders.
How to prepare for a blood test
A patient who has to donate blood for analysis needs to refuse before visiting the laboratory meal. Ideally, even the day before, it is worth abstaining from drinking liquor, fatty and heavy food. Dinner should be pretty easy. It is important that there are no heavy physical exertions on the eve of blood donation, as this can affect, for example, leukocyte levels. For the same reasons it is not worth taking too cold showers or hot baths before researching.
It should be noted that the results of the analysis can also be affected by stressful situations and medication. If the patient has been taking any medication recently, it is worth telling the attending doctor about it.
For general analysis, blood collection is carried out usually from the ring finger. To take the biochemical analysis, the lab will draw blood from the vein.