Answer:
Explanation:
The best intervention in this scenario is to stop the urokinase infusion immediately and notify the physician right away. The presence of a medium-sized bloody stool suggests that the patient may be experiencing a gastrointestinal bleed, which can be a serious complication of thrombolytic therapy like urokinase. The physician will need to assess the situation further and determine the appropriate course of action, which may include additional diagnostic testing and treatment adjustments.