Question

A 47-year-old woman with pleuritic chest pain and low-intermediate pretest probability for PE has a D-dimer ordered. She is 63 years old. Which threshold best defines an age-adjusted negative D-dimer (FEU assay)?

Accepted Answer

Age × 10 ng/mL

Answer

Age × 5 ng/mL

Answer

Fixed 250 ng/mL

Answer

Fixed 1000 ng/mL

Answer

Age × 20 ng/mL

Practice question

A 47-year-old woman with pleuritic chest pain and low-intermediate pretest probability for PE has a D-dimer ordered. She is 63 years old. Which threshold best defines an age-adjusted negative D-dimer (FEU assay)?