The Specimen of Choice for Measurement of Potassium (K⁺)is Plasma

question 8

Multiple Choice

The specimen of choice for measurement of potassium (K⁺) is plasma because:

• A) anticoagulants preserve the potassium ionic activity better than serum.
• B) platelets release potassium during the coagulation process in a serum sample.
• C) hemolysis is easily avoided when obtaining a plasma sample.
• D) the electrolyte exclusion effect is avoided in a plasma sample.

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