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Wells score estimates pulmonary embolism (PE) probability based on clinical findings. It helps guide diagnostic testing decisions.
Hướng dẫn từng bước
- 1Assign points for clinical features: leg swelling, HR >100, respiration >20, hemoptysis, signs of DVT, etc.
- 2Calculate total score
- 3Score 0-1 (low), 2-6 (intermediate), or 7+ (high) PE probability
Ví dụ có lời giải
đầu vào
Sudden dyspnea +3, HR 110 +1.5, no leg signs, CXR normal
Kết quả
Wells ≈ 4.5 (intermediate risk)
Consider D-dimer
Lỗi thường gặp cần tránh
- ✕Applying score in patients already hospitalized for other reasons
- ✕Neglecting clinical context when interpreting score
Câu hỏi thường gặp
When should Wells score be used?
For non-hospitalized patients with suspected PE. It combines clinical judgment with objective criteria.
What if Wells score is intermediate?
Order D-dimer testing; negative D-dimer essentially excludes PE at this risk level.
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