Tag Archives: reagents

Making Sense of Mixing Studies

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A physician may order mixing studies when a patient’s prothrombin time (PT), activated partial thromboplastin time, (aPTT) or both PT and aPTT are prolonged outside the upper limit of the laboratory’s established normal range. Determining the cause of the prolongation It is important to determine if the cause of the prolongation is due to a   …Continue Reading