Low ADAMTS13 Activity

**Semantic type:** Laboratory or Test Result

**Definition:** A finding indicating that a significantly lower than expected activity for the proteinase a disintegrin and metalloproteinase with thrombospondin motifs 13 (ADAMTS13) is detected in a sample. This finding is associated with thrombotic thrombocytopenic purpura.

**Synonyms:** - ADAMTS 13 Deficiency - ADAMTS-13 Deficiency - ADAMTS13 Deficiency - ADAMTS13 Deficiency - Low A Disintegrin and Metalloproteinase With Thrombospondin Motifs 13 Activity - Low vWF-CP Activity - Low vWF-Cleaving Protease Activity - vWF-CP Deficiency