A 58-year-old with suspected PE has intermediate pretest probability (Wells 4.5). He is 72 years old with a D-dimer of 670 ng/mL (FEU). How should D-dimer be interpreted using age-adjusted cutoffs?APositive because any value >500 ng/mL is positiveBNegative because age-adjusted cutoff is age ×10 in FEU (here 720 ng/mL)CNegative because age-adjusted cutoff is age ×5 in FEUDPositive because age-adjusted D-dimer is not recommendedEIndeterminate; proceed directly to CTPACheck my answer