ABSORPTION OF A WEAK BASE (pKa 4.4) GASTRIC JUICE (pH =1.4) =● ●一● PLASMA (pH 7.4) RNH2 RNH2 一 RNH时 ●● ●● RNH 1.4-4.4=0g =3 7.44.4=10 3 [RNH 31 (RNH 31 TRA 1 2}。 1 = p时} 1000 [RNH 3] 0.001 SUM IN GASTRIC JUICE 1001 SUM IN PLASMA 1.001 GASTRIC JUICE PLASMA 1001:1.001 Distribution:fluid compartments 院宽四 EXTRACELLULAR FLUID ACELLULAR FLUID INTRAVASCULAR FLUID (Plasma)Distribution: fluid compartments