Abstract:
:In vivo neutron activation analysis was used to measure total body sodium and chlorine in 18 male and 18 female normal adults. Corrections for body size were developed. Normalisation factors were derived which enable the prediction of the normal levels of sodium and chlorine in a subject. The coefficient of variation of normalised sodium was 5.9% in men and 6.9% in women, and of normalised chlorine 9.3% in men and 5.5% in women. In the range examined (40-70 years) no significant age dependence was observed for either element. Total body sodium was correlated with total body chlorine and total body calcium. Sodium excess, defined as the amount of body sodium in excess of that associated with chlorine, also correlated well with total body calcium. In females there was a mean annual loss of sodium excess of 1.2% after the menopause, similar to the loss of calcium.
journal_name
Phys Med Bioljournal_title
Physics in medicine and biologyauthors
Kennedy NS,Eastell R,Smith MA,Tothill Pdoi
10.1088/0031-9155/28/3/002subject
Has Abstractpub_date
1983-03-01 00:00:00pages
215-21issue
3eissn
0031-9155issn
1361-6560journal_volume
28pub_type
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