1. Total haemoglobin mass, but not haemoglobin concentration, is associated with preoperative cardiopulmonary exercise testing-derived oxygen-consumption variables 
J.M. Otto, J.O.M. Plumb, D. Wakeham, E. Clissold, L. Loughney, W. Schmidt, H.E. Montgomery, M.P.W. Grocott, T. Richards 
British Journal of Anaesthesia 
Volume 118, Issue 5, Pages (May 2017)
DOI: /bja/aew445
Copyright © 2017 The Author(s) Terms and Conditions

2. Fig 1
Equations to calculate total haemoglobin mass, blood, erythrocyte and plasma volumes. CO, carbon monoxide; %COHb, percent carboxyhaemoglobin; [Hb], haemoglobin concentration; Hct, haematocrit; BV, blood volume; EV, erythrocyte volume; PV, plasma volume; lung residual volume, 1500 ml in men, 1200 ml in women; alveolar ventilation, 5000 ml min−1.
British Journal of Anaesthesia  , DOI: ( /bja/aew445)
Copyright © 2017 The Author(s) Terms and Conditions

3. Fig 2
Unadjusted relationship between haematological variables and exertional oxygen consumption. Relationship of V ˙ O 2 peak (in millilitres per kilogram per minute) to tHb-mass (in grams per kilogram) (A) and [Hb] (in grams per litre) (C) in 42 patients. Relationship of AT to tHb-mass (in grams per kilogram) (B) and [Hb] (in grams per litre) (D) in 39 patients. AT, anaerobic threshold; [Hb], haemoglobin concentration; tHb-mass, total haemoglobin mass; V ˙ O 2 peak , peak oxygen oxygen consumption.
British Journal of Anaesthesia  , DOI: ( /bja/aew445)
Copyright © 2017 The Author(s) Terms and Conditions