Six-week follow-up
At six-weeks follow-up mean p-K was 4.5 mmol/l (SD 0.4) in the intervention group and 3.9 mmol/l (SD 0.4) in the control group, i.e., p-K was significantly increased in the intervention group compared to the control group with a mean difference in changes of 0.47 mmol/l (95% CI: 0.14; 0.81), P = 0.008. After six weeks, mean TBK was not significantly increased in the intervention group compared to the control group, a mean difference in changes of 0.044 g/kg (-0.02; 0.11), P = 0.17.