Is Supine Rest Necessary before Blood Sampling for Plasma Metanephrines?
نویسندگان
چکیده
منابع مشابه
Is supine rest necessary before blood sampling for plasma metanephrines?
BACKGROUND The impact of blood sampling in sitting vs supine positions on measurements of plasma metanephrines for diagnosis of pheochromocytoma is unknown. METHODS We compared plasma concentrations of free metanephrines in samples from patients with primary hypertension obtained after supine rest with those obtained in the sitting position without preceding rest. We also assessed the effects...
متن کاملEvaluating the optimum rest period prior to blood collection for fractionated plasma free metanephrines analysis
INTRODUCTION The high diagnostic accuracy of plasma metanephrines (PMets) in the diagnosis of Phaeochromocytoma/Paraganglioma (PPGL) is well established. Considerable controversy exists regarding optimum sampling conditions for PMets. The use of reference intervals that do not compromise diagnostic sensitivity is recommended. However, the optimum rest period prior to sampling has yet to be clea...
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A simple search for information sources shows that there are many researches and articles in the field of lecture method and comparison with other types of teaching methods. Interestingly enough, if not with certainty in all of these researches, at least in most of them, the result was in favor of non-lecturing. Previously, the authors emphasized the importance of rhetoric in a Persian letter (...
متن کاملSingle-centre study of the diagnostic performance of plasma metanephrines with seated sampling for the diagnosis of phaeochromocytoma/paraganglioma.
Background Measurement of plasma metanephrines is regarded as one of the best screening tests for phaeochromocytoma/paraganglioma. Current guidelines recommend that samples are ideally collected in the supine position after 30 min rest and interpreted using supine reference ranges, in order to optimize the diagnostic performance of the test. Current practice in our centre is to collect samples ...
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 2007
ISSN: 0009-9147,1530-8561
DOI: 10.1373/clinchem.2006.076489