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Central cyanosis Central cyanosis is caused by diseases of the heart or lungs, or abnormal haemoglobin (methaemoglobinaemia or sulfhaemoglobinaemia). Cyanosis is seen in the tongue a...
Drug treatment Dapsone is first choice in cases refractory to dietary management alone and reduces the itch within a day or two. [ 6 ] Dapsone does not have any effect on intestinal disease...
Arterial blood gases may show a metabolic acidosis and possible methaemoglobinaemia. ECG may show myocardial ischaemia or infarction and creatine kinase or troponin levels may indicate myo...
Dehydration, hepatic dysfunction, methaemoglobinaemia, intravascular haemolysis and CNS effects (eg, malaise, tremor, myoclonus, delirium, seizures, encephalopathy) may occur.
Determine if the haemolysis is intravascular Increased plasma haemoglobin. Methaemoglobinaemia. Haemoglobinuria. Identify the cause of haemolytic anaemia Genetic: ...
Hypoxaemia: asphyxiation, respiratory failure, acute anaemia, haemorrhage, carbon monoxide poisoning, methaemoglobinaemia. Type B - tissue hypoxia absent Type B1 - underlying dise...
Skin - cyanosis (methaemoglobinaemia), very pink (carboxyhaemoglobinaemia, cyanide, hydrogen sulfide), blisters (barbiturates, tricyclic antidepressants (TCAs), benzodiazepines), needle track...
Dapsone may cause neonatal haemolysis and methaemoglobinaemia. If necessary it should be prescribed to pregnant women in combination with folic acid.