A nurse is assessing a patient who had an inferior vena cava (IVC) filter placement. Which of the following assessment findings is the most concerning and requires immediate notification to the healthcare provider?

Sudden onset of severe chest pain and dyspnea following IVC filter placement may indicate pulmonary embolism, which is a life-threatening complication requiring immediate intervention.

An inferior vena cava (IVC) filter is a medical device inserted into the inferior vena cava to prevent blood clots from traveling to the lungs and causing a pulmonary embolism. Although IVC filters are designed to prevent pulmonary embolism, paradoxically, they can sometimes cause complications, including the very condition they are meant to prevent.

The occurrence of sudden severe chest pain and difficulty breathing after IVC filter insertion is a highly concerning symptom that may suggest pulmonary embolism. This can happen if a blood clot forms around the filter, the filter dislodges, or a clot bypasses the filter. Pulmonary embolism is a life-threatening emergency that requires immediate medical intervention, including anticoagulation therapy, thrombolytic therapy, or even surgical intervention.

Other signs and symptoms of pulmonary embolism include tachycardia, hypoxemia, and a sense of anxiety, and in severe cases, hemodynamic instability may occur. Nurses should immediately assess oxygen saturation and vital signs and notify the physician for urgent evaluation and treatment. Early recognition and intervention are critical for patient survival.

Post-procedural monitoring after IVC filter insertion should focus on detecting complications such as filter migration, thrombosis, insertion site infection, and paradoxical embolism. Patients require careful assessment of respiratory status, circulation, and neurological function.

Understanding the Clinical Context

An inferior vena cava (IVC) filter is a device placed to trap emboli from the lower extremities, preventing them from reaching the pulmonary arteries. While effective, it carries a risk of delayed complications, including device migration, fracture, or penetration of the vessel wall into adjacent structures like the aorta.

Analyzing the Assessment Findings

When prioritizing post-procedure assessments, the nurse must distinguish between expected findings and signs of a life-threatening complication. The most concerning finding here is the sudden onset of severe chest pain and dyspnea, which signals a potential vascular catastrophe requiring immediate intervention.

Why the Correct Answer is the Priority

The correct answer is 3. Sudden onset of severe chest pain and dyspnea. This presentation is a hallmark of an acute aortic or caval injury. The provided case report by Cholagh et al. (2026) illustrates a critical mechanism: an IVC filter that had penetrated the aorta led to the development of an aortocaval hematoma and pseudoaneurysm ^[1]. Although the case involved a precipitating event (chest compressions), the underlying pathology—a filter strut eroding through the IVC wall into the aorta—can become acutely symptomatic at any time. A sudden onset of severe pain and dyspnea in this context suggests acute hemorrhage, hematoma expansion, or thromboembolism, all of which can rapidly progress to hemodynamic collapse. This is a clear deviation from the expected recovery trajectory and demands immediate notification of the healthcare provider for emergent vascular surgical evaluation, as the patient may require an endovascular aortic repair (EVAR) ^[1].

Why the Other Options Are Less Concerning

- 1. Mild tenderness at the insertion site: This is an expected finding following a percutaneous procedure. While it requires monitoring, it does not indicate a life-threatening internal injury.
- 2. Heart rate of 88 beats per minute: This is a normal adult heart rate. Even if slightly elevated from baseline, it is not acutely alarming in isolation.
- 4. Small hematoma at the catheter insertion site: A small, stable hematoma is a common minor complication at a venous access site. It requires local pressure and monitoring for expansion but is not an immediate systemic threat compared to the signs of internal hemorrhage.