The client's platelet count has dropped more than 50% from baseline (from 250,000 to 80,000/mm³) after 7 days of heparin therapy, and new thrombosis symptoms have developed in the opposite leg. This presentation is highly suggestive of heparin-induced thrombocytopenia (HIT) with thrombosis. The priority action is to immediately discontinue all heparin to prevent further platelet activation and thrombotic complications, and to notify the healthcare provider for evaluation and initiation of a non-heparin anticoagulant. Continuing heparin would worsen the condition. Applying warm compresses or obtaining a Doppler ultrasound are interventions that may be appropriate later but do not address the urgent need to stop the causative agent and seek alternative anticoagulation.
For study reference only. Always follow current clinical guidelines and your institution’s protocols.