Well’s grading of puimonary embolism is based ona) Dopplerb) Clinical symptomsc) Hemoptysisd) Heart Rate > 100 beats per min
**Core Concept**
The Wells' score is a clinical prediction rule used to estimate the probability of **pulmonary embolism (PE)** in patients. It incorporates various clinical parameters to stratify patients into different risk categories. This scoring system aids in the diagnosis and management of **deep vein thrombosis (DVT)** and **pulmonary embolism**.
**Why the Correct Answer is Right**
The Wells' score for **pulmonary embolism** is based on several clinical parameters, including **clinical symptoms** such as cough, chest pain, and hemoptysis, as well as signs like **heart rate > 100 beats per minute**. The score also considers other factors such as a history of DVT or PE, recent surgery, and immobility.
**Why Each Wrong Option is Incorrect**
**Option A:** Doppler is used to diagnose DVT, not directly for pulmonary embolism scoring.
**Option C:** Hemoptysis, while a symptom of PE, is just one component of the clinical assessment.
**Clinical Pearl / High-Yield Fact**
The Wells' score is a valuable tool for clinicians to quickly assess patients for **pulmonary embolism**, helping to decide who needs further diagnostic testing like CT pulmonary angiography.
**Correct Answer:** B. Clinical symptoms