A 37-year-old man has been admitted to the hospital for a DV…

A 37-year-old man has been admitted to the hospital for a DVT that leads to a pulmonary embolism. While doing rounds in the morning the bedside nurse alerts the NP to let them know the patient’s platelet count is trending downwards. The NP goes to assess the patient and notes that there is a small amount of blood around the patient’s PICC line insertion site that is While reviewing the labs, the platelet count was at 300,000 and is now at 112,000. The patient has been receiving a weight-based Heparin infusion for management of his DVT and PE. What does the NP suspect?