Wells 2000

Wells Score (PE)

Pre-test probability

Clinician mode

Caution

0

PE unlikely — do D-dimer

  • In pregnancy: D-dimer unreliable — image (V/Q preferred if normal CXR, else CTPA).
  • Empirical LMWH if imaging delayed >24 h and no bleeding risk.

Reference range

>4 = PE likely · ≤4 = PE unlikely (two-level Wells)

Common pitfalls

  • Not validated in pregnancy — image if any suspicion.
  • D-dimer unreliable in pregnancy.

For educational use only

Not medical advice. Verify dosing against the BNF and your local trust guidelines before prescribing.