1. At the cessation of NF 3 exposure, methemoglobin reverts back to hemoglobin.

2. Methemoglobin concentration is one of the important indices to evaluate the oxygen-carrying ability of blood and hemoglobin-based oxygen carriers(HBOCs).

3. This new device can detect methemoglobin without the delays inherent in laboratory blood analysis, and it can monitor the effectiveness of treatment.

4. At the cessation of NF3exposure, methemoglobin reverts back to hemoglobin. While methemoglobinemia clears spontaneously over several hours, hemolytic anemia may take several weeks to resolve.

5. Methemoglobin --- The oxidized form of hemoglobin, containing iron in the ferric rather than the ferrous state, that is incapable of binding oxygen.

6. Determination of methemoglobin is important in clinical diagnosis of methemoglobinemia and research on HBOCs.

7. Method: Cyanide methemoglobin method was conducted to determine hemoglobin value, which recommended by WHO on the basis of random cluster sampling.

8. The formation of methemoglobin reduces the amount of oxygen available to body tissues.

9. Catalase abolished the addition hemolysis as well as TBARS and methemoglobin mediated by hemin and ascorbic acid.

10. DLCO was not different between the two groups, though methemoglobin and carboxyhemoglobin were higher in asthmatics than healthy women.

11. At highest field strengths, the core of the clot may have low signal on T2-weighted images, due to the presence of intracellular methemoglobin or of deoxyhemoglobin.

12. Thus, at highest field strengths, the core of the clot may have low signal, due to the presence of deoxyhemoglobin or of intracellular methemoglobin .

13. Excessive oxidant stress may overload the protective HMP shunt or methemoglobin reductase pathways, causing Heinz body hemolysis or methemoglobin formation, respectively.

14. With the development of technology and application of the blood gas analyzer, methods for methemoglobin determination are being optimized.

15. Methemoglobinemia, also known as "met-Hb", is a disorder characterized by the presence of a higher than normal level of methemoglobin in the blood.

16. However, no significant effects of NO inhalation on blood gas, methemoglobin level, and histology and ultrastructure of the lung were found.

17. DL did not differ between the two groups, although methemoglobin and carboxyhemoglobin were higher in women with asthma than in healthy women.

18. Objective: Research of impact of vein anaesthesia with propofol procaine on content of methemoglobin.

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19. For all species tested, the immediate effect of acute exposure to high concentrations of NF3 is extensive methemoglobin formation with subsequent hypoxia.

20. Over-exposure to NF3via inhalation induces the conversion of hemoglobin to methemoglobin .