Hypophosphataemia and Hyperphosphataemia in a Hospital PopulationBr Med J 1972; 1 doi: http://dx.doi.org/10.1136/bmj.1.5795.273 (Published 29 January 1972) Cite this as: Br Med J 1972;1:273
- M. G. Betro,
- R. W. Pain
One hundred cases of hypophosphataemia (≤ 2·0 mg/100 ml) and 84 cases of hyperphosphataemia (≥ 5·0 mg/100 ml) occurring in a hospital population were studied in order to determine the cause of the abnormality. Examples of hyperphosphataemia due to renal failure were excluded from the study.
A low serum phosphorus concentration was most frequently due to intravenous administration of carbohydrate, usually glucose, which accounted for 40% of cases. The next commonest cause was vomiting (12%). No obvious explanation could be found in 26% of cases, but in most of these factors were present which are known to affect phosphorus metabolism.
No one cause of hyperphosphataemia was outstanding in frequency and in over 50% of cases no definite explanation for the abnormality could be found.