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HemoglobinHemoglobin is a protein that is carried by red cells acting as a oxygen carrier.
It takes the oxygen from the lungs to the peripheral tissues to retain the feasibility of cells. They also aid in O2 scavenging in anaerobic environments. Hemoglobin is made from two similar proteins that are glued together. The hemoglobin is in solution inside the cell and is surrounded by a membrane that holds them intact. Hemoglobin transports oxygen from the lungs or gills to the rest of the body, such as to the muscles, where it releases the oxygen load.
Low hemoglobin count result in anemia. Anemia is further classified based on the size of the red blood cells, which are the cells which contain hemoglobin in vertebrates. They are microcytic (small sized red blood cells), normocytic (normal sized red blood cells), or macrocytic (large sized red blood cells). The hemoglobin level is a typical test used for blood donation.
A comparison with the hematocrit values is made by multiplying the hemoglobin by three.
Decrease of hemoglobin, with or without an absolute decrease of red blood cells, leads to symptoms of anemia. Anemia has many different causes, although iron deficiency and its resultant iron deficiency anemia are the most common. Deficiency of iron reduces heme synthesis, red blood cells in iron deficiency anemia are hypochromic (lacks the red hemoglobin pigment) and microcytic (smaller than normal). Other types of anemia are not seen to a great extent. During the accelerated breakdown of red blood cells (hemolysis), bilirubin causes jaundice and thereby, the hemoglobin in circulation can result in renal failure. Mutations in the globin chain are associated with sickle-cell anemia and thalassemia.
The normal hemoglobin levels are 11 to 12 g/dl in pregnancy, 12.1 to 15.1 g/dl for women, 13.8 to 17.2 g/dl for men and 11 to 16 g/dl for children. Complications or errors in metabolic pathways of heme synthesis results in a group of genetic disorders, known as the porphyrias. Hemoglobin A slowly combines with glucose at a particular point in the molecule.
The resulting molecule is termed as HbA1C. As the content of glucose in the blood increases, the percentage of Hb A that is converted into HbA1C also raises. In diabetics whose blood glucose levels are high, the percent HbA1C is also more.
The slow pace of Hb A combination with glucose, makes the fact clear that the Hb A1c percentage is an indicator of the blood glucose level averaged over a longer time (the half-life of red blood cells, is typically 50-55 days). High hemoglobin is usually due to an amplified number or anomaly of red blood cells. The causes for higher hemoglobin levels include smoking, dehydration due to diarrhea/sweating, carbon monoxide exposure, living at a high altitude, anabolic steroid use, congenital heart disease, Scarring and thickening of the lung tissue, failure of the right side of your heart, kidney disease and polycythemia vera. Understanding the way the human body works goes a long way in ensuring that you know how to handle it in the best possible way. In a day and age when people do not pay close attention to their bodies and usually do not have the time of day to ensure that they handle their bodies with the utmost care in order to boost the bodies potential and capabilities of performance and production, ensuring that you keep your body optimally functional is likely to reap significant rewards. One of the most important and vital aspects of the human body is the blood stream. The bloodstream is a very intricate and awe inspiring system within the body and is primarily the source of the life we live.
Within the blood is a protein known as hemoglobin. The main hemoglobin function is to pick up oxygen in the lungs and deliver it to the various peripheral tissues of the body in order to maintain the viability of the cells. Medical research has shown that hemoglobin is made up of a set of two distinct proteins that are required to exist in the blood in order for it to be able to pick up, carry and release the oxygen to various parts of the body. A little further scientific study on hemoglobin samples collected from all over the world shows that the composition of the protein stays the same in every body with the coding genes for the same being identical from one person to the next. However, there are instances in which one of the genes may have been ‘accidently’ altered as a result of the consequence of nature and are scientifically known as ‘mutations’, although very rare. In most cases, these mutations are of no harm and the individuals will continue to lead a normal life. However, because of the fact that the mutation occurs in the genes that store the information on the makeup of the hemoglobin, it tends to be passed down from one generation to another – causing the possibility of an increased risk of suffering from conditions like thalassemia and sickle cell disease in future generations.
Hemoglobin levels are common all throughout the animal kingdom and in the circulatory fluids of a number of vertebrates.
Each molecule will consist of a poryphyrin ring that has a central atom hooked to a clump of proteins that are known as globin. The normal hemoglobin levels or the normal hemoglobin count in the human body have been recorded at being about 13.5 to 18 g/100 ml in men and about 11.5 – 16.5 g/100ml in women.
Anemia is probably the most common condition that develops if the hemoglobin range is not maintained and the hemoglobin levels start falling significantly lower than the threshold. Medically termed as being a condition that develops when the red blood cell count is less than normal, the condition is known to cause low hemoglobin symptoms such as fatigue, paleness in the skin, a shortness of breath, hair loss and malaise. All of these low hemoglobin symptoms will have a significant effect on the quality of life that you lead and should not be ignored at all. One of the most interesting facts about a low hemoglobin count is the fact that in the event that the anemia is a long standing or chronic condition, chances are that the body will adjust to the low oxygen levels and the individual may not experience anything abnormal until the anemia becomes rather severe.
Because of the fact that the blood count as well as maintaining normal hemoglobin levels is so important in the functionality as well as performance of the body, any illness that causes the symptoms of anemia to develop might order a Complete blood count (CBC) test to be administered in order to help better gauge the hemoglobin levels in the body. In the event that the you experience high hemoglobin levels, some of the most common causes of it are likely to be dehydration, an excess production of red blood cells in the bone marrow as well as severe lung disease and a number of other medical conditions.
The most common causes of low hemoglobin levels include iron deficiency, cirrhosis of the liver, excessive bleeding and kidney disease along with a number of other chronic illnesses.
Identifying the various causes of low hemoglobin in children, males, elderly as well as women will go a long way into helping treat the condition as well as the underlying causes for the same. Causes of low hemoglobin levels in pregnant women is something that might not need to be looked into too deeply as the pregnancy itself is known to cause a significant amount of change in the levels over the course of a day. Studies have shown that the hemoglobin levels decrease slightly naturally as a result of the pregnancy.
The actual hemoglobin test is conducted in very much the same way that any other blood test is conducted. No preparation is required before the commencement of the test and the doctor or presiding nurse will first secure a rather firm band towards the top of your arm. This will serve to cause some amount of blockage to your blood flow into that arm and cause the vein to swell up. This helps the doctor identify the vein more accurately. Once done, a syringe is inserted into the arm and some amount of blood extracted and stored in a vial that will then be sent to the laboratory for analysis. The band placed on top of the wrist is then removed and a piece of cotton placed onto the site of the injection in order to restrict any loss of blood through the puncture wound. Once the blood sample has been analyzed in the laboratory, the results will be sent back to the physician or doctor for a review and these results will then be discussed with the patient. Any course of action and treatment will then be zeroed in on from here.
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