Question

A 68-year-old with low-intermediate pretest probability for PE (Wells 3) and normal vitals is 68 years old. What testing strategy can safely exclude PE without imaging?

Accepted Answer

Apply age-adjusted D-dimer (age×10 ng/mL FEU) and if negative, no imaging

Answer

Use a fixed D-dimer cutoff of 500 ng/mL FEU for all ages

Answer

Proceed directly to CTPA

Answer

Use D-dimer only if oxygen saturation <95%

Answer

PERC rule applies to all intermediate-risk patients

Practice question

A 68-year-old with low-intermediate pretest probability for PE (Wells 3) and normal vitals is 68 years old. What testing strategy can safely exclude PE without imaging?