BABY BLUE GAME WIKI SKIN

However, in infants the most common cause of methemoglobinemia is acquired through the ingestion of nitrates through well water or foods. The most common congenital cause is a deficiency in the enzyme cytochrome b5 reductase which reduces methemoglobin in the blood. A methemoglobin level >1.5g/dL causes cyanosis. Additionally, the oxygen that is already bound is held more tightly to the hemoglobin due to a higher affinity, resulting in less oxygen delivery. Methemoglobinemia which can be acquired or congenital, occurs when the iron in hemoglobin is oxidized from Fe2+ to Fe3+, leading to poor binding of oxygen. In the case of methemoglobinemia the curve is shifted to the left given the higher affinity for oxygen. Hemoglobin oxygenation dissociation curve. Instead of two separate major blood vessels leaving the heart, there is one common outgoing vessel. The five most common cyanotic heart defects that may result in Blue Baby Syndrome include the following:ДЎ.вЂ…PersistentвЂ…(orвЂ…patent)вЂ…truncusвЂ…arteriosus Conditions in which there is poor blood flow to the systemic circulation, such as coarctation of the aorta suggests that the body does not receive the oxygenated blood it requires with resultant cyanosis. There are also cardiac conditions such as transposition of the great arteries or truncus arteriosus, that results in an overall increase in blood flow to the lungs but with limited flow of the oxygenated blood to the rest of the body. The degree of cyanosis is dependent on how much deoxygenated blood is mixed with oxygenated blood before being pumped to the body.Д¬ardiac conditions in which there is decreased blood flow to the lungs such as, tetralogy of Fallot or pulmonary valve atresia, result in less blood becoming oxygenated. Infants with these types of heart defects may have a constant bluish tint to their skin, or they may have temporary episodes of cyanosis.

In these defects, some of the blood that is pumped to the body has not been oxygenated by the lungs and therefore will appear more blue. Specific types of congenital heart defects that cause blood to pass directly from the right side of the heart to the left side result in cyanosis. In babies with low levels of oxygen or mixing of oxygenated and deoxygenated blood, the blood can have a blue or purple color, causing cyanosis.

Normally, oxygenated blood appears red and deoxygenated blood has more of a blue appearance.

BABY BLUE GAME WIKI SKIN

Д«oth of these conditions cause cyanosis, or a bluish discoloration of skin or mucous membranes. The blue baby syndrome or cyanosis occurs when absolute amount of deoxygenated hemoglobin >3g/dL which is typically reflected with an O2 saturation of <85%. ДЄlthough, these are the most common causes of cyanosis there are other potential causes that can result in a baby's skin or mucous membranes turning blue as a result, factors that cause hypoventilation, perfusion/ventilation differences in the lungs, poor cardiac output of oxygenated blood, etc. Increased levels of methemoglobin prevent oxygen from being released into the tissues and result in hypoxemia.

Methemoglobinemia, which is a disease defined by high levels of methemoglobin in the blood.

This can be caused by either reduced blood flow to the lungs or mixing of oxygenated and deoxygenated blood.

CyanoticвЂ…heartвЂ…disease, which is a category of congenitalвЂ…heartвЂ…defect that results in low levels of oxygen in the blood.

This term has traditionally been applied to cyanosis as a result of: Blue baby syndrome can refer to conditions that cause cyanosis, or blueness of the skin, in babies as a result of low oxygen levels in the blood.

Baby blue game wiki