Question

An ED patient (age 67) with low-intermediate pretest probability for PE and age 67 years has a high-sensitivity D-dimer assay reported in FEU. What is the age-adjusted D-dimer cutoff to exclude PE?

Accepted Answer

Age × 10 ng/mL (FEU) = 670 ng/mL

Answer

500 ng/mL for all ages

Answer

Age × 5 ng/mL (FEU) = 335 ng/mL

Answer

Age × 100 ng/mL (FEU) = 6700 ng/mL

Answer

No age adjustment applies to FEU

Practice question

An ED patient (age 67) with low-intermediate pretest probability for PE and age 67 years has a high-sensitivity D-dimer assay reported in FEU. What is the age-adjusted D-dimer cutoff to exclude PE?