Question

A 51-year-old with suspected PE, low pretest probability, D-dimer 450 μg/L FEU (age 51). Interpretation?

Accepted Answer

Negative using age×10 μg/L FEU (510) cutoff; PE excluded

Answer

Positive; proceed to imaging

Answer

Indeterminate; repeat in 24 h

Answer

Use DDU age×5 cutoff instead

Answer

Cannot use age-adjustment at age 51

Practice question

A 51-year-old with suspected PE, low pretest probability, D-dimer 450 μg/L FEU (age 51). Interpretation?