What Is Mean Corpuscular HGB?

Hemoglobin concentration (HGB) refers to the amount of hemoglobin contained in a unit volume (L) of blood. Hemoglobin, also called hemoglobin, is the main component of red blood cells, and can combine with oxygen to transport oxygen and carbon dioxide.

Hemoglobin concentration (HGB)

This entry lacks an overview map . Supplementing related content makes the entry more complete and can be upgraded quickly. Come on!

Hemoglobin concentration (HGB) refers to the amount of hemoglobin contained in a unit volume (L) of blood. Hemoglobin, also called hemoglobin, is the main component of red blood cells, and can combine with oxygen to transport oxygen and carbon dioxide.

Name

Hemoglobin concentration (HGB)

category

blood

Male: 120-160g / L (12.0-16.0g / dl); Female: 110-150g / L (11.0-15.0g / dl); Neonatal: 170-200g / L (18.0-19.0g / dl).

The clinical significance of increased and decreased hemoglobin is basically similar to that of red blood cell count, but hemoglobin can better reflect the degree of anemia. The increase of hemoglobin is as follows: (1) Physiological increase: seen in plateau residents, fetuses and newborns, strenuous activity, fear, cold water bath, etc .; (2) pathological increase: seen in severe congenital and acquired cardiopulmonary disorders and blood vessels Malformations, such as tetralogy of Fallot, congenital heart disease, obstructive emphysema, pulmonary heart disease, pulmonary artery or pulmonary vein fistula, and abnormal hemoglobin disease with low oxygen carrying capacity, etc .; also found in some tumors or kidneys Diseases, such as kidney cancer, hepatocellular carcinoma, renal embryo tumor, hydronephrosis, polycystic kidney disease, etc. The decrease of hemoglobin is seen in the following cases: (1) Physiological decrease: the relative deficiency of hematopoietic system caused by rapid growth and development, which is mainly caused by rapid growth and development, is generally 10% lower than that of normal people- 20%. In the second and third trimester of pregnancy, the blood is diluted due to the increase in blood volume during pregnancy. As the hematopoietic function of the bone marrow is gradually reduced in the elderly, the red blood cell and hemoglobin content may decrease. (2) Pathological decrease: Bone marrow hematopoietic failure, such as anemia associated with aplastic anemia, bone marrow fibrosis; Anemia due to lack of hematopoietic substances or utilization disorders, such as iron deficiency anemia, folic acid and vitamins Megaloblastic anemia caused by B12 deficiency; Anemia caused by excessive red blood cell destruction caused by genetic defects of red blood cell membranes, enzymes, or external factors, such as hereditary spherocytosis, oceanic anemia, paroxysmal Sleeping hemoglobinuria, abnormal hemoglobinopathy, immune hemolytic anemia, major surgery of cardiopulmonary bypass or certain biological and chemical factors, and hemolytic anemia caused by some factors such as acute or chronic blood loss.

Before the test: (1) Do not eat too greasy, high-protein food the day before blood drawing, and avoid heavy alcohol consumption. The alcohol content in the blood directly affects the test results. (2) After 8 pm the day before the physical examination, fasting should be started for 12 hours to avoid affecting the test results. (3) When drawing blood, you should relax and avoid the constriction of blood vessels caused by fear and increase the difficulty of blood collection. After the examination: (1) After the blood is drawn, it is necessary to perform local compression on the pinhole for 3-5 minutes to stop bleeding. Note: Do not rub, as it may cause subcutaneous hematoma. (2) The pressing time should be sufficient. The coagulation time varies from person to person, and some people take a little longer to coagulate. Therefore, when the surface layer of the skin does not seem to bleed, the compression will be stopped immediately, which may cause the blood to penetrate the skin and cause bruising due to incomplete hemostasis. Therefore, pressing for a long time can completely stop bleeding. If there is bleeding tendency, the compression time should be extended. (3) Symptoms of dizziness such as dizziness, dizziness, fatigue, etc. should be caused by lying down and drinking a small amount of sugar and water immediately after the blood draw. (4) If congestion occurs locally, a wet towel after 24 hours can promote absorption.

Dehydration, mixed chronic high altitude disease, neonatal impetigo, immune thrombocytopenic purpura in the elderly, thalassemia, anemia caused by excessive hemolysis, iron utilization anemia, colorectal cancer, colon cancer, megaloblastic anemia

Dark eyes, oral hallucinations, and reduced labor endurance

^[1]