Why the study?
Does delayed testing (24 hours at room temperature) alter plasma anti-Xa activity in patients receiving enoxaparin compared to immediate testing?
Does delayed testing (24 hours at room temperature) alter plasma anti-Xa activity in patients receiving enoxaparin compared to immediate testing?
Plasma specimens for anti-Xa activity monitoring require prompt handling, as storage at room temperature for 24 hours leads to falsely elevated values.
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Delayed testing may falsely elevate anti-Xa levels; supports prompt processing but leaves open effects on enoxaparin dosing accuracy.
Rojnuckarin et al. (2009) studied this question.
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