Acid-base status and azostix.

The Effect of the Patient's Acid-Base Balance on Azostix Strips' Estimation of Blood Urea

“…The physician in charge should decide the urgency but be advised of this cause of interference. To that end this paper has been written, the package leaflet for Azostix amended to include the new information and a letter written to the British Medical Journal (Hall and Preston, 1971). …”