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Biomedical subjects

J Ost

Publications and source records attributed to J Ost.

4 recordsLinked to original sources
PubMed1994

Characterization, standardization and experiences with KONE ISE for Mg2+.

The principles of a fully automated potentiometric determination of ionized magnesium in human blood serum are presented. By incorporating a magnesium selective electrode, into a commercially available six channel electrolyte analyzer (Microlyte 6, KONE Instruments, Finland), determination of the biologically-active, ionized fraction of magnesium has been made possible. In this paper, the analytical performance of the measurement system is presented and determination of ionized magnesium in real patient samples is discussed with special attention to the significance of this new parameter.

Autoanalysis↗
PubMed1987

Capital intensive hospital technology and illness: an analysis of American state data.

This paper: describes the development of a 'hospital technology index' to measure the level of capital intensive medical technology in each of the 50 U.S. states and the District of Columbia, reports differences between states in scores on this index, and tests the hypothesis that there is a low but significant negative correlation between the level of capital intensive medical technology and the level of illness. The three subscales of the hospital technology index have high alpha coefficients of reliability, are reasonably orthogonal, and there is at least some evidence of construct and discriminant validity for each. The multiple regression analysis suggests that there is either no relation between capital intensive medical technology and the rate of illness or that there is a slight tendency for the illness rate to increase as the level of technology increases. Eight possible explanations for the findings are discussed.

Financing, Government↗