A patient is being treated with an anticoagulant for pulmonary embolism (PE). What patient assessment finding indicates that a heparin infusion would be stopped IMMEDIATELY?

A decreased level of consciousness in a patient being treated with an anticoagulant for pulmonary embolism is a critical finding that indicates a potential adverse reaction or complication, such as bleeding in the brain or other serious neurological issues. Anticoagulants like heparin increase the risk of bleeding, and a sudden change in mental status can be a sign of intracranial hemorrhage or other significant bleeding events.

When a patient exhibits a decreased level of consciousness, it is paramount to act quickly to prevent further complications that could be life-threatening. Therefore, stopping the heparin infusion immediately is warranted to protect the patient from ongoing risks associated with bleeding. This decision is rooted in the principles of patient safety and the need to respond to alarming symptoms that could indicate a critical deterioration in the patient's condition.

Other findings, such as an elevated heart rate, increased blood pressure, or elevated temperature, while important to monitor, do not necessitate an immediate cessation of heparin as they may not directly indicate life-threatening complications associated with anticoagulation therapy.