Question

A 29-year-old previously healthy adult with suspected PE has Wells score low to intermediate and age 29. D-dimer 450 ng/mL FEU (lab cutoff 500). What is the interpretation?

Accepted Answer

Negative; PE can be excluded without imaging

Answer

Positive; proceed to CT

Answer

Equivocal; repeat in 24 h

Answer

Negative only if <250

Answer

Age-adjusted cutoff is age × 5, so positive

Practice question

A 29-year-old previously healthy adult with suspected PE has Wells score low to intermediate and age 29. D-dimer 450 ng/mL FEU (lab cutoff 500). What is the interpretation?