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. Author manuscript; available in PMC: 2013 Apr 15.
Published in final edited form as: Blood Cells Mol Dis. 2012 Mar 9;48(4):219–225. doi: 10.1016/j.bcmd.2012.02.003

Table 2.

Red cell ion content, concentration, and efflux.

Na (mmol/kg Hb) K (mmol/kg Hb) Mg (mmol/kg Hb) s[Na+] (mM) s[K+] (mM) s[Mg2+] (mg/dL) Ouab.-sens Na efflux Bumet.-sens Na efflux
(mmol/1013cellsxhr) (mmol/1013cellsxhr)
III.2 542 24.8 10.2 144 5.0 1.9 0.11 0.00
IV.1 312 16.9 6.8 144 4.6 2.5 0.00* 0.00*
IV.2 322 13.3 6.7 143 4.0 2.2 0.00* 0.00*
IV.3 554 23.5 9.0 141 4.5 2.3 0.00 0.14
IV.4 431 18.9 8.0 144 4.2 1.9 0.29 0.32
V.1 515 33.3 10.2 139 5.2 NA 0.00* 0.00*
V.2 387 28.3 8.7 145 5.4 NA NA NA

Cell contents of Na, K, and Mg were determined by atomic absorption on cells shipped overnight to Boston. Serum electrolytes (s [Na+] and s[K+]) were measured by ion selective electrodes in serum prepared from fresh blood (see Methods). Values of cell ion content and serum electrolyte concentrations are means of two triplicate determinations except for V.1 and V.2 (n=1). For Na efflux values without *, n=2 triplicate determinations; with *, n=1 triplicate determination.

NA, not available. Data from unaffected dogs is shaded.