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. Author manuscript; available in PMC: 2018 Feb 14.
Published in final edited form as: Hemodial Int. 2016 Nov 1;21(3):343–347. doi: 10.1111/hdi.12510

Table 2.

Comparison of hemodialysis subgroups who demonstrated rise vs. fall in blood ammonia (NH3) during dialysis

Hemodialysis subgroup n Delta NH3
(μmol/L)		 Delta HCO3
(mEq/L)		 Lowest recorded SBP
(mmHg)		 Lowest MAP
(mmHg)
Positive delta NH3 10 9.1±1.6 8.5±0.5 124±8 86±7
Negative delta NH3 13 −4.5±0.8 6.2±0.5 136±6 94±6
P<0.01 P=0.27 P=0.38

Delta ammonia and bicarbonate (HCO3) were calculated from pre- and post-dialysis biochemistries. Delta MAP was calculated from the highest and lowest recorded intradialytic blood pressures.