A 70‑year‑old with low‑to‑intermediate pretest probability for PE has a D‑dimer in FEU units. What age‑adjusted cutoff applies?...

Question

A 70‑year‑old with low‑to‑intermediate pretest probability for PE has a D‑dimer in FEU units. What age‑adjusted cutoff applies?

Accepted Answer

Age × 10 ng/mL FEU for patients >50 years

Answer

Age × 5 ng/mL FEU

Answer

Age × 10 ng/mL FEU

Answer

Age × 100 ng/mL FEU

Answer

Fixed 500 ng/mL FEU for all ages

us-abem MCQ (SBA): Age‑Adjusted D‑dimer