The Hawksley random zero sphygmomanometer. Instrument is accurate if used properly.
نویسندگان
چکیده
منابع مشابه
Using Hawksley random zero sphygmomanometer as a gold standard may result in misleading conclusions.
We combined a database of paired blood pressure measurements taken using the Hawksley random-zero sphygmonanometer and a standard mercury sphygmomanometer and a database of paired measurements made on a SpaceLabs 90202 ambulatory blood pressure recorder and standard sphygmomanometer to determine how the SpaceLabs 90202 would have fared if it had been assessed against the Hawksley random-zero sp...
متن کاملExperience with the random-zero sphygmomanometer.
SOURCES of variation and bias in the measurement of blood pressure with a sphygmomanometer have been identified in the observer, the subject, and the instrument (Rose, Holland, Crowley, 1964). Systematic and non-systematic variation in measurement, which clinicians may be content to ignore, can attain importance in research by vitiating between-group comparisons through variable bias or necessi...
متن کاملProperties of the random zero sphygmomanometer.
The random zero sphygmomanometer is widely used in studies involving blood pressure measurement because it is believed to eliminate digit preference and reduce measurement error. We performed blood pressure measurements sequentially using random zero and standard sphygmomanometers in random order in 1,356 participants in the Cardiovascular Health Study. Despite adherence to the manufacturer's i...
متن کاملPotential problems with the random-zero sphygmomanometer.
The random-zero sphygmomanometer is frequently used in epidemiologic and clinical research to increase the reliability and validity of blood pressure readings. However, recent reports have suggested that there is a correlation between the zero values of a random-zero sphygmomanometer and the zero-corrected blood pressure readings obtained. The design of the random-zero sphygmomanometer would su...
متن کاملFailure of random zero sphygmomanometer in general practice.
1 Liebermann J. Elevation of serum angiotensin converting enzyme (ACE) level in sarcoidosis. Am J' Med 1975 ;59 :365-72. 2 Nosal A, Schleissner LA, Mishkin FS, Liebermann J. Angiotensin converting enzyme and gallium scan in noninvasive evaluation of sarcoidosis. Ann Intern Med 1979;91 :501-2. 3 Crystal RG, Roberts WC, Hunninghake GW, Gadek JE, Fulmer JD, Line BR. Pulmonary sarcoidosis: a diseas...
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ژورنال
عنوان ژورنال: BMJ
سال: 1993
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.307.6896.124-a