KMID : 0377619920570030197
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Korean Jungang Medical Journal 1992 Volume.57 No. 3 p.197 ~ p.199
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Possible Pseudohyperkalemia Caused by Fist Clenching Movement
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Abstract
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Asking clients to clench their fists is a practice that has been used to make veins more visable for phelebotomy, for a long peroid.
But Don said, in his study, that fist clenching makes pseudohyperkalemia as excising muscle releases potassium.
In this study, 8 healthy men subjects¢¥ plasma potassium results show that it really works. One minute¢¥s fist clenching increased plasma potassium level as much as 0.80 mEq/L compare to the baseline samples. They returned to normal range after another one minute¢¥s relexation.
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