Question

A 67-year-old man with suspected PE and low risk tested with D-dimer FEU 620 ng/mL; he is 62 years old. Interpretation?

Accepted Answer

Negative by age-adjusted cutoff (age ×10 = 620 ng/mL)

Answer

Positive; continue imaging

Answer

Age adjustment does not apply

Answer

Negative only if <500 ng/mL

Answer

Use DDU instead

Practice question

A 67-year-old man with suspected PE and low risk tested with D-dimer FEU 620 ng/mL; he is 62 years old. Interpretation?