Fist clenching 'overestimates blood potassium'

GPs have been warned to ensure phlebotomy is done properly at their practice after a study showed poor technique is landing some patients in hospital unnecessarily. (Source: Pulse)

Source: http://www.medworm.com/index.php?rid=1470528&cid=c_183_35_f&fid=36970&url=http%3A%2F%2Fwww.pulsetoday.co.uk%2Fstory.asp%3Fsectioncode%3D23%26storycode%3D4119232%26c%3D1

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