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It is difficult to assess the vitamin B12 metabolism in chronic renal insufficiency. In varying numbers out of a total of 88 nephropathy patients with varying degrees of insufficiency (22 patients without restriction of kidney function, 53 patients with chronic renal insufficiency in the stage of compensated retention and 13 haemodialysis patients) the Schilling test was performed and the serum vitamin B12 level was measured in fasting and 4, 6, 8 and 10 hours after oral administration of 2000 micrograms of vitamin B12. Regardless of the volume of urine, the Schilling test must be treated critically with serum creatinine values between 150 and 300 mumol/l and beyond 300 mumol/l it is no longer of diagnostic value. Serum vitamin B12 measurement after oral administration of 2000 micrograms of vitamin B12 allows vitamin resorption in the ileum to be qualitatively demonstrated on the basis of the curve. In most renal insufficiency patients the serum vitamin B12 level was increased, but this does not exclude the possibility of vitamin B12 deficiency.
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
October 1984,
British medical journal (Clinical research ed.),
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
November 2001,
Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke,
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
February 1964,
Gut,
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
February 2006,
Nederlands tijdschrift voor geneeskunde,
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
December 2005,
Nederlands tijdschrift voor geneeskunde,
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
March 2012,
Jornal brasileiro de nefrologia,
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
January 2012,
Annals of Saudi medicine,
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
January 2002,
Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke,
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
January 1977,
Scandinavian journal of gastroenterology,
H Sperschneider, and
G Stein, and
K Lauterbach, and
K Günther
January 2022,
Vitamins and hormones,
