II. Indications
- Evaluation of children at low risk for Pulmonary Embolism
III. Criteria (all 8 must be present)
- Clinician gestalt: Low clinical suspicion (<15% estimated probability). No prior Venous Thromboembolism (VTE, PE or DVT)
- No surgery requiring intubation within the previous 30 days. No exogenous Estrogen use. No Hemoptysis
- Age-adjusted normal Heart Rate
- Age <=12 years: Heart Rate <120 bpm
- Age >12 years: Heart Rate <100 bpm Oxygen Saturation (SpO2) >94% on room air No suspected Deep Vein Thrombosis (DVT) on exam (no Unilateral Leg Swelling)
IV. Interpretation
- Pulmonary Embolism may be reasonably excluded if all 8 criteria are met
- Failure to meet all criteria should prompt consideration of other methods to exclude Pulmonary Embolism
V. Efficacy
- Test Sensitivity: 99.6%
- Test Specificity: 0.1%