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PERC Rule for Pulmonary Embolism

Age ≥50
No 0
Yes 1
HR ≥100
No 0
Yes 1
SaO₂ on room air <95%
No 0
Yes 1
Unilateral leg swelling
No 0
Yes 1
Hemoptysis
No 0
Yes 1
Recent surgery or trauma
Surgery or trauma ≤4 weeks ago requiring treatment with general anesthesia
No 0
Yes 1
Prior PE or DVT
No 0
Yes 1
Hormone use
Oral contraceptives, hormone replacement or estrogenic hormones use in males or female patients
No 0
Yes 1
Result:

Background

Result Interpretation

Ranges Ranges