La Cruz Roja
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Publicado: 7 de noviembre de 2012
Cyanosis
Cyanosis is the appearance of a blue or purple coloration of the skin or mucous membranes due to the tissues near the skin surface being low on oxygen. The onset of cyanosis is 5.0 g/dL ofdeoxyhemoglobin.[1] The bluish color is more readily apparent in those with high hemoglobin counts than it is with those with anemia. Also the bluer color is more difficult to detect on deeplypigmented skin. When signs of cyanosis first appear, such as on the lips or fingers, intervention should be made within 3–5 minutes because a severe hypoxia or severe circulatory failure may have induced thecyanosis.
The name cyanosis, literally means "the blue disease" or "the blue condition". It is derived from the color cyan, which comes from kyanos, the Greek word for blue.[2]
Cyanosis is definedas a bluish discoloration, especially of the skin and mucous membranes, due to excessive concentration of deoxyhemoglobin in the blood caused by deoxygenation.
Differential diagnosis
Cyanosis isdivided in to two main types: central (around the core and lips) and peripheral (only the extremities are affected). Cyanosis can occur in the fingers, including underneath the fingernails, as well asother extremities (called peripheral cyanosis), or in the lips and tongue (central cyanosis).
Central cyanosis
Central cyanosis is often due to a circulatory or ventilatory problem that leads to poorblood oxygenation in the lungs. It develops when arterial saturation of blood with oxygen is ≤85%. Cyanosis may not be detected until saturation is 75% in dark-skinned individuals.
Acute cyanosis canbe a result of asphyxiation or choking, and is one of the surest signs that respiration is being blocked
Causes
1. Central Nervous System:
* Intracranial hemorrhage
* Cerebral anoxia
*Drug overdose (e.g. Heroin)
* Tonic-clonic seizure (e.g. grand mal seizure or gran mal seizure)
2. Respiratory System:
* Bronchiolitis
* Bronchospasm (e.g. Asthma)
* Lung disease...
Cyanosis is the appearance of a blue or purple coloration of the skin or mucous membranes due to the tissues near the skin surface being low on oxygen. The onset of cyanosis is 5.0 g/dL ofdeoxyhemoglobin.[1] The bluish color is more readily apparent in those with high hemoglobin counts than it is with those with anemia. Also the bluer color is more difficult to detect on deeplypigmented skin. When signs of cyanosis first appear, such as on the lips or fingers, intervention should be made within 3–5 minutes because a severe hypoxia or severe circulatory failure may have induced thecyanosis.
The name cyanosis, literally means "the blue disease" or "the blue condition". It is derived from the color cyan, which comes from kyanos, the Greek word for blue.[2]
Cyanosis is definedas a bluish discoloration, especially of the skin and mucous membranes, due to excessive concentration of deoxyhemoglobin in the blood caused by deoxygenation.
Differential diagnosis
Cyanosis isdivided in to two main types: central (around the core and lips) and peripheral (only the extremities are affected). Cyanosis can occur in the fingers, including underneath the fingernails, as well asother extremities (called peripheral cyanosis), or in the lips and tongue (central cyanosis).
Central cyanosis
Central cyanosis is often due to a circulatory or ventilatory problem that leads to poorblood oxygenation in the lungs. It develops when arterial saturation of blood with oxygen is ≤85%. Cyanosis may not be detected until saturation is 75% in dark-skinned individuals.
Acute cyanosis canbe a result of asphyxiation or choking, and is one of the surest signs that respiration is being blocked
Causes
1. Central Nervous System:
* Intracranial hemorrhage
* Cerebral anoxia
*Drug overdose (e.g. Heroin)
* Tonic-clonic seizure (e.g. grand mal seizure or gran mal seizure)
2. Respiratory System:
* Bronchiolitis
* Bronchospasm (e.g. Asthma)
* Lung disease...
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