[Determination of human vitamins B 12 resorption].
In order to establish the absorption of vitamin B12 in the human body at present several methods are used. When the retention of the whole body is measured nearly no restricting conditions are connected with the methodically exactest declaration. The retention of the whole body can be determined by means of simple measuring arrangements. Special attention is to be paid to the initial or reference value, the establishment of which often becomes problematically by the dynamics of metabolism. In the case of the study of the vitamin B12 metabolism by means of the measurement of the retention of the whole body the reference value should be determined at the earliest after 90 minutes; then the relative retention is to be measured after 4 days or later. The method is most agreeable to the patient and does not depend on the help of the patient.
D006801:Humans; D007408:Intestinal Absorption; D007437:Intrinsic Factor / Q000378:metabolism; D014805:Vitamin B 12 / Q000378:metabolism*; D014915:Whole-Body Counting
D007437:Intrinsic Factor; D014805:Vitamin B 12
Zur Bestimmung der Vitamin-B12-Resorption im Menschen