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June 14, 1919


JAMA. 1919;72(24):1737. doi:10.1001/jama.1919.26110240001008

In two articles1 appearing in The Journal of the American Medical Association about a year ago, solutions of sodium and potassium iodids were suggested as suitable opaque mediums for pyelography. In these articles, 25 per cent. aqueous solutions of these salts were recommended as best suited for pyelography. It was further stated that the sodium and potassium salts had been used interchangeably, but that the sodium salt was preferable.

A recent release from military service has enabled the author to investigate further the use of these solutions. A more complete report of this investigation will appear later, but it seems well to report now certain modifications of the conclusions reached previously.

First, it is desired to emphasize, more strongly than before, that the sodium salt is to be preferred. Second, a 17.5 per cent. solution of sodium iodid has been found to be sufficiently opaque for pyelography, and nothing

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