A 48‑year‑old man with low pretest probability of PE has D‑dimer 550 ng/mL (age 50). What threshold applies for age‑adjusted D‑dimer?...

Question

A 48‑year‑old man with low pretest probability of PE has D‑dimer 550 ng/mL (age >50). What threshold applies for age‑adjusted D‑dimer?

Accepted Answer

Age × 10 ng/mL (i.e., 480 ng/mL)

Answer

Fixed 500 ng/mL for everyone

Answer

Age × 5 ng/mL

Answer

Age + 100 ng/mL

Answer

No adjustment is recommended

Pulmonary Embolism (Age‑Adjusted D‑dimer) — MRCEM SBA MCQ