## Core Concept
Pulmonary embolism (PE) is a condition where one or more arteries in the lungs become blocked by a blood clot, leading to potential life-threatening complications. The statements provided relate to various aspects of PE, including its pathophysiology, presentation, and management.

## Why the Correct Answer is Right
To accurately determine why the correct answer is right, the specific statements related to options A, B, C, and D need to be evaluated. However, given that the question and statements are not provided, a general approach to evaluating the truthfulness of statements about PE includes considering current medical knowledge on the topic. Typically, true statements might involve the fact that PE can lead to right heart strain, that it often presents with symptoms like dyspnea and chest pain, and that diagnostic approaches include CT pulmonary angiography.

## Why Each Wrong Option is Incorrect
Without the specific details of each option, a general explanation for why an option might be incorrect involves identifying outdated, incorrect, or incomplete medical information. For example:
- **Option A:** Might be incorrect if it suggests a treatment approach that is not supported by current guidelines or evidence.
- **Option B:** Could be incorrect if it inaccurately describes a common symptom or risk factor for PE.
- **Option C:** May be incorrect if it implies a pathophysiological mechanism not supported by scientific evidence.
- **Option D:** Could be incorrect based on similar reasoning as above.

## Clinical Pearl / High-Yield Fact
A critical clinical pearl regarding PE is the importance of the **Wells' score** and **Geneva score** in stratifying patients' risk of PE before undergoing diagnostic imaging. Another key point is that **D-dimer** testing is often used as an initial screening tool due to its high sensitivity but low specificity for PE.

## Correct Answer Line
Given the absence of specific details for options A through D, let's hypothetically assign:
**Correct Answer: D. [Statement about PE].**