Total hemoglobin

Definition: Total hemoglobin concentration ([tHb]) is defined as the sum of oxygenated and deoxygenated hemoglobin concentration [O2Hb] + [HHb]; sometimes referred as [HbT] or [HbTot]. [tHb] is measured only by frequency domain multidistance NIRS and Time-domain NIRS. Continuous wave instrumentations can measure total hemoglobin concentration changes (∆[tHb]) defined as the sum of oxygenated and deoxygenated hemoglobin concentration changes ∆[O2Hb] + ∆[HHb]; sometimes referred as ∆[HbT] or ∆[HbTot]. Definition: Total hemoglobin concentration ([tHb]) is defined as the sum of oxygenated and deoxygenated hemoglobin concentration [O2Hb] + [HHb]; sometimes referred as [HbT] or [HbTot]. [tHb] is measured only by frequency domain multidistance NIRS and Time-domain NIRS. Continuous wave instrumentations can measure total hemoglobin concentration changes (∆[tHb]) defined as the sum of oxygenated and deoxygenated hemoglobin concentration changes ∆[O2Hb] + ∆[HHb]; sometimes referred as ∆[HbT] or ∆[HbTot].

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Related terms: Oxygenated Hemoglobin, Deoxygenated Hemoglobin, Total Hemoglobin  

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