Isotopic values of end stage renal disease (ESRD) patient's blood plasma.

a.32 human blood plasma samples were collected from ESRD (End stage renal disease) patients, fasting for 8 hours, and are subjected into two groups, ESRDnHD (end stage renal disease yet with no haemodialysis treatment) and ESRDHD (end stage renal disease with receiving haemodialysis treatment).
b., c., d.The BUN, Creat, and eGFR test, all is the indicator for renal function; see Table 1 footnotes c, d, and e.
e.The concentration of sodium in blood. The normal level of sodium in blood is 135–140 mmol/L.
f.The concentration of potassium in blood. The normal blood potassium level is 3.5–5 mmol/L.
g.The concentration of chloride in blood. The normal range for chloride in blood is 98–108 mmol/L.
h., i.The isotope ratio is reported as the δ-notation (‰), see details in Table 1 footnotes c and d.
j.ESRDnHD samples (ESRD-1 to ESRD-5) were collected from the ESRD patients who have not yet been the haemodialysis treatment. The ESRDnHD did not perform the monovalent ion test.
k.ESRDHD samples (ESRD-6 to ESRD-32) were collected from the ESRD patients who are receiving haemodialysis over 6 months. These samples were collected right before the ESRD patients to receive the haemodialysis.
l.The numbers in the parenthesis are the standard deviations taken all numbers of each group.