Question

A 28-year-old man with suspected PE (Wells 0) but age 28 has D-dimer 560 ng/mL FEU. Which is correct regarding age-adjusted D-dimer?

Accepted Answer

Age-adjusted cutoff applies only if age >50; his cutoff remains 500 ng/mL

Answer

Use age ×10 so cutoff is 280 ng/mL

Answer

Use age ×5 so cutoff is 140 ng/mL

Answer

Age adjustment applies to all adults

Answer

Use 1000 ng/mL for all low-risk patients

Practice question

A 28-year-old man with suspected PE (Wells 0) but age 28 has D-dimer 560 ng/mL FEU. Which is correct regarding age-adjusted D-dimer?