What is the normal hemoglobin value for infants and young children?

As we all know, human life activities require a constant supply of oxygen. After oxygen enters the human body through the mouth, it will be transported by the blood to all parts of the body. The reason why blood can transport oxygen is that hemoglobin plays an irreplaceable role. If a person's hemoglobin level decreases, the blood's ability to transport oxygen will be greatly reduced. What should be the normal hemoglobin level for a baby?

Normal hemoglobin values ​​for infants and young children:

The normal hemoglobin values ​​are: newborns: 170-200g/L; children: 110-160g/L.

Hemoglobin is the main component of red blood cells. Each hemoglobin molecule is composed of four heme groups and globin, and each heme is composed of four pyrrole rings with an iron atom in the center of the ring. When the iron in hemoglobin is in a divalent state, it can reversibly bind to oxygen (oxyhemoglobin). If the iron is oxidized to a trivalent state, Hemoglobin is converted into methemoglobin and loses its oxygen-carrying capacity.

The physiological and pathological variations of hemoglobin are roughly the same as those of red blood cells. However, in various anemias, the reduction of red blood cells and hemoglobin is not necessarily in a parallel relationship. The clinical significance of hemoglobin is roughly the same as that of red blood cell count, but hemoglobin count can better reflect the degree of anemia. Clinically, doctors often use hemoglobin as one of the important indicators to determine whether anemia occurs.

1. Physiological increase

Newborns, plateau residents, etc.

2. Pathological increase

Polycythemia vera, dehydration caused by various reasons, congenital heart disease, cor pulmonale, etc.

3. Reduce

Various anemias (such as aplastic anemia, iron deficiency anemia, sideroblastic anemia, megaloblastic anemia, hemolytic anemia, thalassemia, etc.), massive blood loss (such as traumatic bleeding, surgical bleeding, postpartum bleeding, acute gastrointestinal bleeding, chronic blood loss caused by ulcers, etc.), leukemia, postpartum, chemotherapy, hookworm disease, etc.

Infants and young children are weak, so it is very necessary to pay attention to hemoglobin. When there is a problem with the hemoglobin value, parents need to give their children timely diagnosis and treatment, otherwise it will affect their health.