Table 2.
Segmental flows and fluxes of volume, Na+, and K+
DCTCNTeCNTasEnd/total
Control     
Absolute delivery     
 Fv (nl/min) 6.0 5.6 5.4 2.6 
 Na+ (pmol/min) 390.0 274.1 231.8 221.9 
 K+ (pmol/min) 12.0 16.5 25.1 16.9 
Absolute reabsorption     
 Fv (nl/min) 0.4 0.2 2.8 3.4 
 Na+ (pmol/min) 115.9 42.3 10.0 168.1 
 K+ (pmol/min) −4.5 −8.6 8.3 −4.9 
Reabsorption relative to DCT delivery     
 Fv (%) 7.3 2.7 47.3 57.2 
 Na+ (%) 29.7 10.9 2.6 43.1 
 K+ (%) −37.5 −72.0 69.0 −40.5 
High-K     
Absolute delivery     
 Fv (nl/min) 6.0 5.6 5.4 2.4 
 Na+ (pmol/min) 390.0 274.1 222.5 150.1 
 K+ (pmol/min) 12.0 16.5 32.8 60.7 
Absolute reabsorption     
 Fv 0.4 0.2 3.0 3.6 
 Na+ 115.9 51.6 72.5 239.9 
 K+ −4.5 −16.3 −27.8 −48.7 
Reabsorption relative to DCT delivery      
 Fv (%) 7.3 2.7 49.3 59.2 
 Na+ (%) 29.7 13.2 18.6 61.5 
 K+ (%) −37.5 −136.0 −232.0 −405.5 
Low-K     
Absolute delivery     
 Fv (nl/min) 6.0 5.6 5.4 2.6 
 Na+ (pmol/min) 390.0 274.1 237.1 226.5 
 K+ (pmol/min) 12.0 16.5 20.3 13.6 
Absolute reabsorption     
 Fv 0.4 0.2 2.8 3.4 
 Na+ 115.9 37.0 10.6 163.5 
 K+ −4.5 −3.8 6.7 −1.6 
Reabsorption relative to DCT delivery     
 Fv (%) 7.3 2.7 47.2 57.1 
 Na+ (%) 29.7 9.5 2.7 41.9 
 K+ (%) −37.5 −31.5 55.5 −13.5 
DCTCNTeCNTasEnd/total
Control     
Absolute delivery     
 Fv (nl/min) 6.0 5.6 5.4 2.6 
 Na+ (pmol/min) 390.0 274.1 231.8 221.9 
 K+ (pmol/min) 12.0 16.5 25.1 16.9 
Absolute reabsorption     
 Fv (nl/min) 0.4 0.2 2.8 3.4 
 Na+ (pmol/min) 115.9 42.3 10.0 168.1 
 K+ (pmol/min) −4.5 −8.6 8.3 −4.9 
Reabsorption relative to DCT delivery     
 Fv (%) 7.3 2.7 47.3 57.2 
 Na+ (%) 29.7 10.9 2.6 43.1 
 K+ (%) −37.5 −72.0 69.0 −40.5 
High-K     
Absolute delivery     
 Fv (nl/min) 6.0 5.6 5.4 2.4 
 Na+ (pmol/min) 390.0 274.1 222.5 150.1 
 K+ (pmol/min) 12.0 16.5 32.8 60.7 
Absolute reabsorption     
 Fv 0.4 0.2 3.0 3.6 
 Na+ 115.9 51.6 72.5 239.9 
 K+ −4.5 −16.3 −27.8 −48.7 
Reabsorption relative to DCT delivery      
 Fv (%) 7.3 2.7 49.3 59.2 
 Na+ (%) 29.7 13.2 18.6 61.5 
 K+ (%) −37.5 −136.0 −232.0 −405.5 
Low-K     
Absolute delivery     
 Fv (nl/min) 6.0 5.6 5.4 2.6 
 Na+ (pmol/min) 390.0 274.1 237.1 226.5 
 K+ (pmol/min) 12.0 16.5 20.3 13.6 
Absolute reabsorption     
 Fv 0.4 0.2 2.8 3.4 
 Na+ 115.9 37.0 10.6 163.5 
 K+ −4.5 −3.8 6.7 −1.6 
Reabsorption relative to DCT delivery     
 Fv (%) 7.3 2.7 47.2 57.1 
 Na+ (%) 29.7 9.5 2.7 41.9 
 K+ (%) −37.5 −31.5 55.5 −13.5 

Fv, volume flow.

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