One of the main criteria for diagnosis is hemoglobin in a blood test. The designation will be discussed in this article. Indicators of its level can help in recognizing many diseases.
The correctness of the prescribed treatment, the course of this process and the final result directly depend on the correctness of the established diagnosis. For this purpose, the method of analysis of blood parameters is used.
The total amount of hemoglobin contained in the blood can be recognized through a general clinical analysis. In modern practice, the analysis on the level of the indicator is not carried out separately, but it should be taken into account that deviations from the norms help not only to start the treatment process in time, but also to avoid a number of negative consequences of the disease.
Values below the established norms show the transition of a number of diseases to a level with an irreversibility point. Consider in more detail the hemoglobin in the blood test, the designation will also be given.
What is hemoglobin blood?
In simple terms, hemoglobin in human blood is a special type of protein based on a compound of protein origin and iron. It is contained in red blood cells, in other cells hemoglobin indices are absent. The content of iron-containing proteins in erythrocytes occupy up to ninety percent of the cells, according to their chemical composition they are referred to the group of chromopeptides due to a complex connection with non-protein constituents.
It is the Latin name of the two main components that became the basis of the name hemoglobin: heme – an iron-containing group and globin – a protein base. The structure of the molecule is 4 to 1 in relation to iron to protein. All this is hemoglobin in the blood test. Its designation is known to many.
By species in the human body the following names of this compound are distinguished:
Physiological indicators are designated in analyzes as HGB.
RBC is an indicator of the number of red blood cells. They are often interrelated.
Pathological name received elements that have deviations in physical and chemical properties, and their manifestations are due to the presence of congenital defects of the human body.
Glycated hemoglobin what shows? Consider this question below.
The role of hemoglobin for the human body
The main functional significance is determined by the ability of oxygen transfer to all organs and cells of the structure of the human body and the output of spent carbon dioxide beyond its limits. In fact, he is responsible overall for the respiratory system, the regulation of the acid-base balance of blood cells.
Adapting the oxygen derived from the external environment, it carries it to all tissues, organs and systems of the body through the vessels of the bloodstream, supports metabolism and the reverse output of the spent substance to the environment. Transportation processes are continuous.
Designation in the analyzes
How to find hemoglobin in the blood test. Its designation has already been considered above.
These are the Latin letters Hb or HGB.
Regulatory level indicators
The level of hemoglobin in the blood of people depends on a number of physiological parameters, including the following standards:
- under the norm, it is common for males to take general indicators from 130 to 170 grams per liter;
- for women, limits range from 120 to 150 grams per liter;
- for babies up to the age of two, elevated levels of fetal hemoglobin are characteristic, this phenomenon is absolutely normal.
2. Characteristics of the method for obtaining analysis results.
Answering the question – glycated hemoglobin, which shows, we can say the following. The biochemical variant of the study shows the separation of the amount of hydrolyzed and fetal protein.
The standard adopted values from four to six percent of the content of hydrolyzed protein and one percent for the level of fetal. It is customary to build on these standards when deciphering the values obtained, exceeding them indicates the presence of serious diseases.
3. Pregnancy. For women in this position, a reduction in the level to one hundred and ten grams per liter is considered the norm. This amount is quite enough for the development of the fetus. But the diet of a pregnant woman should be strictly monitored to maintain it. A decrease in performance below this trait can lead to oxygen starvation of the fetus.
This is how important hemoglobin is in the blood test. Its designation is often found on medical forms.
Methods for determining the level and its calculations
The determination of indicators is performed during a general clinical blood analysis in the conditions of specialized laboratories. It is there that all the indicators are deciphered. To obtain them apply the following methods.
- Colorimetric method.
- Gasometric technique.
- Molecular determination of the amount of iron in the molecule.
The most accurate data is obtained by applying the two latter techniques.
The content is taken on the basis of one liter of human blood by the amount of protein and iron contained in erythrocytes.
Terms of analysis
- The analysis is taken in the morning on an empty stomach.
- Before carrying out the analysis are not allowed high physical exertion.
- A long stay on the street can change the level upwards.
The obtained indicators show the presence of high or low levels of hemoglobin in the blood bodies.
Lowering the level ensures that the person is feeling unwell and has the following signs:
- state of depression and drowsiness;
- the presence of pale color in the skin and dark circles under the eyes;
- a rapidly advancing process of general fatigue;
- in children, developmental delay.
The average hemoglobin content mch indicates the average index of this protein in erythrocytes, shows the mass of hemoglobin in the average erythrocyte and is calculated by the following formula:
MCH = Hb (g / l) / red blood cell count x 10 -12.
The normal MCH in humans is 24-34 pg. If deviations are identified, then this may indicate the presence of pathology.
Increasing the level of warnings about the presence of health problems in the following systems of the human body:
- pathology of the excretory system and kidneys;
- the presence of irreversible changes in the pulmonary and cardiovascular systems.
Depending on the interpretation of the indicators, treatment and the collection of an additional history of the disease are prescribed. We considered the basic designations of blood test indicators.