| Paralysis,
paresis or recent plaster immobilization of legs |
+1 |
| Recently
bedridden for more than 3 days or major surgery within 4 weeks |
+1 |
| Localised
tenderness along the deep venous system |
+1 |
| Entire
leg swollen |
+1 |
| Active
cancer (treatment ongoing or <6 months or palliative) |
+1 |
| Calf
circumference 3cm greater in symptomatic leg (as measured 10cm below
the tibial tuberosity) |
+1 |
| Pitting
oedema (greater in the symptomatic leg) |
+1 |
| Collateral
superficial veins (non-varicose) |
+1 |
| Alternative
diagnosis as likely as DVT |
-2 |