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Clinical evaluation of an automatic potassium electrode.
Author(s) -
TREASURE TOM,
AVELING W.
Publication year - 1981
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1981.tb08785.x
Subject(s) - medicine , potassium , analyser , photometer , correlation coefficient , anesthesia , statistics , chromatography , metallurgy , optics , mathematics , chemistry , materials science , physics
Summary A Nova 1 potassium analyser has been evaluated for the first 3 months of its use in a cardiac surgical intensive care unit. The machine was out of action for 11 out of 104 days. 515 external calibrations were performed with 4·50 mmol/l potassium standards: mean 4·49 mmol/l, standard deviation 0·07. 692 comparisons were made with routine laboratory flame photometer measurements on the same sample: correlation coefficient r =0·815. It is concluded that Nova 1, if kept in working order, can provide potassium estimations quickly and accurately.