| Swelling of the calf, ankle or foot | Sharp chest pain (worse during deep breathing) |
| Tenderness or pain in the calf or upper leg | Shortness of breath (dyspnoea) and/or hyperventilation |
| Purple or blue discoloration of the skin on the leg | Coughing up of blood (haemoptysis) |
| Increased warmth of the leg | Rapid heart beat (tachycardia) |
| Redness of the skin (erythema) | Feeling faint/fainting |