| 释义 |
DictionarySeecyanosiscentral cyanosis
cyanosis [si″ah-no´sis] a bluish discoloration of the skin and mucous membranes due to excessive concentration of reduced hemoglobin in the blood. adj., adj cyanot´ic.central cyanosis that due to arterial unsaturation, the aortic blood carrying reduced hemoglobin.enterogenous cyanosis a syndrome due to absorption of nitrites and sulfides from the intestine, principally marked by methemoglobinemia and/or sulfhemoglobinemia associated with cyanosis, and accompanied by severe enteritis, abdominal pain, constipation or diarrhea, headache, dyspnea, dizziness, syncope, anemia, and, occasionally, digital clubbing and indicanuria.peripheral cyanosis that due to an excessive amount of reduced hemoglobin in the venous blood as a result of extensive oxygen extraction at the capillary level.central cyanosisA bluish discoloration of the mucous membranes in the mouth, indicating hypoxemia and respiratory failure. TreatmentIf hypoxemia is confirmed by oximetry or arterial blood gas analysis, supplemental oxygen is provided. Patient careThe patient's vital signs, blood gases, and sensorium should be monitored closely, as this sign may indicate hypoxemia accompanying impending respiratory failure. Synonym: circumoral cyanosisSee also: cyanosis |