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Age-Adjusted D-dimer Calculator
Calculate age-adjusted D-dimer threshold for patients over 50 years old
Clinical Formula: For patients older than 50 years, the conventional D-dimer threshold ($500\text{ ng/mL}$ FEU) can be adjusted to prevent false positives using the formula: $\text{Threshold} = \text{Age} \times 10\text{ ng/mL}$. Enter patient age and measured D-dimer level below.
Patient Parameters Input
Calculation Results
⚠️ Not medical advice. For educational and clinical decision support only. Age-adjusted thresholds apply only to patients over 50 with low-to-intermediate clinical probability of PE/DVT.