THE oxyhaemoglobin content of blood can be rapidly and accurately estimated with the help of a photoelectric colorimeter. In the absence of oxyhaemoglobin or of other pigments, methaemoglobin can be determined in the same way. In whole blood the presence of metor of sulph-haemoglobin or of other pigments can be detected. The experiments also indicate that the use of 084% ammonia as a diluent fo...

was attributed to the broncho-pneumonia, but against this explanation was the fact that the administration of oxygen failed to abolish or decrease the cyanosis, whereas the cyanosis usually accompanying bronchopneumonia can be relieved or abolished easily by adding some oxygen to the inspired air." He suggested, on the evidence that he gave, that the haemoglobin was in the form of methaemoglobi...

A 77-year-old man had been suffering from breathlessness and fatigue was noted to be cyanosed. Further investigations revealed significant methaemoglobinaemia as high 16.3% (RI < 1.5 %) long-standing, mild thrombocytopenia thought secondary ITP. He multiple chronic medical conditions but none of the treatment thereof has described associated with methaemoglobinaemia. a lifelong non-smoker lives...

background: malaria remains the world’s most devastating human parasitic infection. our goal was to assess the capacity of increasing concentrations of five antimalarial drugs (fansidartm, halfantm, quinine, coartemtm and chloroquine phosphate) to elicit the generation of methemoglobin in three human erythrocyte genotypes (hb aa, hb as and hb ss). materials and methods: spectrophotometric metho...