## **Core Concept**
The question revolves around the management of acute pulmonary embolism (PE) with specific clinical features such as right ventricular (RV) hypokinesia, compromised cardiac output, but normal blood pressure. This scenario indicates a high-risk PE, also known as intermediate-risk or submassive PE, which requires careful consideration of treatment options to prevent further deterioration.

## **Why the Correct Answer is Right**
The correct answer, **Thrombolysis**, is appropriate for patients with acute PE who have evidence of RV dysfunction (like RV hypokinesia) and elevated cardiac biomarkers but are not hypotensive. Thrombolytic therapy aims to rapidly dissolve the clot, reduce pulmonary vascular resistance, and improve RV function. It is considered for patients at intermediate to high risk of adverse outcomes but who do not have severe hypotension.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Anticoagulation alone might not be sufficient in this scenario because the patient shows signs of RV dysfunction and compromised cardiac output, indicating a need for more aggressive intervention to rapidly reduce clot burden.
- **Option B:** Embolectomy (surgical removal of the clot) might be considered in patients with massive PE who are hemodynamically unstable or have contraindications to thrombolysis. However, for a patient with normal blood pressure but signs of RV dysfunction, it's not the first line.
- **Option C:** This option seems to be a placeholder and does not provide a recognizable treatment choice.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that in acute PE, the presence of RV dysfunction (detected by echocardiography) and biomarkers of cardiac injury (like elevated troponin) identifies patients at higher risk of complications. Thrombolysis can be lifesaving in such cases by preventing progression to hemodynamic collapse.

## **Correct Answer:** . **Thrombolysis**