Need help right now?
If someone needs immediate help with blood clot / dvt / pe, use emergency mode.
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DEVELOPMENT FIXTURE — Sudden leg swelling with pain, or sudden shortness of breath and chest pain — possible deep vein thrombosis (DVT) or pulmonary embolism (PE).
The essentials if you need to act right now.
Sudden breathlessness or painful swollen leg — call 112. Do not massage the leg.
What might I see? Observable signs — no diagnosis required.
DEVELOPMENT FIXTURE — Leg: Swelling, pain, warmth, or redness in one calf or thigh — often after sitting still for hours.
DEVELOPMENT FIXTURE — Lungs: Sudden shortness of breath, sharp chest pain worse with breathing, fast heartbeat.
DEVELOPMENT FIXTURE — Other: Coughing blood, fainting, or feeling suddenly very unwell.
DEVELOPMENT FIXTURE — Sudden breathlessness after leg pain is an emergency — call 112 immediately.
Optional deeper explanation — not required to act.
DEVELOPMENT FIXTURE — A blood clot can form in a deep leg vein (DVT). If part of the clot breaks off and travels to the lungs, it causes a pulmonary embolism (PE) — which can be fatal.
DEVELOPMENT FIXTURE — Risk increases after long sitting (travel), surgery, pregnancy, cancer, and some medicines.
Check the scene before you approach.
Do not massage a swollen leg — a clot could break loose.
Civilian-safe actions you can take.
DEVELOPMENT FIXTURE — If they are breathless or have chest pain — call 112 now.
DEVELOPMENT FIXTURE — Help them sit upright — this is easier for breathing than lying flat.
DEVELOPMENT FIXTURE — Ask when symptoms started and about recent travel, surgery, or immobility.
DEVELOPMENT FIXTURE — Keep them calm and still. Do not let them walk far or climb stairs if breathless.
When and how to get professional help.
Sudden breathlessness with chest pain, or one swollen painful leg, needs emergency evaluation.
DEVELOPMENT FIXTURE — You cannot confirm or treat a clot. Recognize warning signs and get emergency help — do not massage the leg.
DEVELOPMENT FIXTURE — Call 112. Say: "Sudden shortness of breath and possible blood clot" or "painful swollen leg after long travel."
DEVELOPMENT FIXTURE — Mention recent surgery, pregnancy, cancer, or long journey.
DEVELOPMENT FIXTURE — For leg-only symptoms without breathlessness, urgent same-day medical care is still needed — call 112 if unsure.
Useful questions before or while you help.
Dangerous actions, when not to attempt rescue, and common myths.
DEVELOPMENT FIXTURE — Do NOT massage, squeeze, or rub a swollen painful leg — this could dislodge a clot.
DEVELOPMENT FIXTURE — Do NOT ignore sudden breathlessness after leg symptoms.
DEVELOPMENT FIXTURE — Do NOT assume leg swelling is just a sprain without medical check.
DEVELOPMENT FIXTURE — Massaging a swollen leg will help blood flow
DEVELOPMENT FIXTURE — Massaging a leg with a clot can break the clot loose and send it to the lungs.
Other scenarios in the same family.
Infant cardiac arrest
DEVELOPMENT FIXTURE — An infant under 1 year who is unresponsive and not breathing normally.
Child cardiac arrest
DEVELOPMENT FIXTURE — A child who is unresponsive and not breathing normally. Their heart may have stopped.
Adult cardiac arrest
DEVELOPMENT FIXTURE — An adult who is unresponsive and not breathing normally. Their heart may have stopped pumping blood.
Chest pain / heart attack
DEVELOPMENT FIXTURE — A person with sudden, severe chest pain, pressure, or discomfort that may spread to the arm, jaw, or back — possible heart attack.
DEVELOPMENT FIXTURE — Loosen tight clothing around chest and neck.
DEVELOPMENT FIXTURE — If they faint or stop breathing — lay them flat and start CPR.
DEVELOPMENT FIXTURE — Pulmonary embolism (sudden breathlessness + chest pain) is life-threatening — emergency care now.
DEVELOPMENT FIXTURE — Suspected DVT also needs prompt hospital evaluation even without breathlessness.
DEVELOPMENT FIXTURE — Well-meaning massage can cause a fatal pulmonary embolism.