1. Inferior vena cava filter
are used to prevent recurrent thrombosis/pulmonary emboli
, if she is on anticoagulant
therapy then it can be a possibility of purple patches due to the anti coagulant drug.
2. Diagnosis will be based on the symptoms and their development, a careful medical history, and blood and urine tests. X rays or computed tomography
scans (CT) may be performed to assess complications.