Signs and symptoms of a pulmonary embolism include which of the following?

  • What is a Blood Clot?
  • What is a Clotting Disorder?
  • Clotting in the Veins
    • Clotting in Children
  • Causes of Blood Clots
  • Inherited Causes
    • Factor V Leiden
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    • Skin Necrosis
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    • Plasminogen Activator Inhibitor 1
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    • Other Inherited Causes
  • Acquired Causes
    • Autoimmune Disorders
    • Pregnancy and Hormone Therapy
    • Heparin-induced Thrombocytopenia
  • Signs and Symptoms
    • Deep Vein Thrombosis
    • Pulmonary Embolism
    • Thrombophilic Conditions
  • Diagnosis
    • Laboratory Tests
  • Treatment
    • Oral Anticoagulants
    • Injectable Anticoagulants
    • Intravenous Anticoagulants
    • Long-term Management of Clotting Disorders
    • Warfarin Interactions with Vitamin K
    • Warfarin Dietary Tips
  • Managing Your Condition
    • Comprehensive Care
    • Anticoagulation Clinic
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    • Resources
  • Clotting Disorder FAQs
    • Dr. Shapiro's Clotting Q&A
    • Diagnosis FAQs
    • Warfarin FAQs

A pulmonary embolism is a blocked blood vessel in your lungs. It can be life-threatening if not treated quickly.

Non-urgent advice: See a GP if:

  • you feel pain in your chest or upper back
  • you have difficulty breathing
  • you're coughing up blood

These can be symptoms of pulmonary embolism.

You may also have pain, redness and swelling in one of your legs (usually the calf). These are symptoms of a blood clot, also called deep vein thrombosis (DVT).

Immediate action required: Call 999 or go to A&E if:

  • you have severe difficulty breathing
  • your heart is beating very fast
  • someone has passed out

These could be signs of a pulmonary embolism or another serious condition.

Treating a pulmonary embolism

If a GP thinks you've got a pulmonary embolism, you'll be sent to hospital for further tests and treatment.

At hospital, you'll probably be given an injection of anticoagulant medicine before you get any test results.

Anticoagulants stop blood clots getting bigger and prevent new clots forming.

If tests confirm you have a pulmonary embolism, you'll continue with anticoagulant injections for at least 5 days.

You'll also need to take anticoagulant tablets for at least 3 months.

You should make a full recovery from a pulmonary embolism if it's spotted and treated early.

Reduce your pulmonary embolism risk

A pulmonary embolism often happens when part of the blood clot dislodges itself from your leg and travels up to your lungs, causing a blockage.

There are measures you can take to lower your risk of getting a pulmonary embolism.

If you're being treated in hospital for another condition, your medical team should take steps to prevent DVT.

A pulmonary embolism is a blockage in the pulmonary artery, which supplies the blood to the lungs. It is one of the most common cardiovascular diseases in the United States.

Pulmonary embolism affects around1 in 1,000people in the U.S. every year.

The blockage, usually a blood clot, prevents oxygen from reaching the tissues of the lungs. This means it can be life-threatening.

The word “embolism” comes from the Greek émbolos, meaning “stopper” or “plug.”

In a pulmonary embolism, the embolus, forms in one part of the body, it circulates throughout the blood supply, and then it blocks the blood flowing through a vessel in another part of the body, namely the lungs.

An embolus is different from a thrombus, which forms and stays in one place.

Symptoms

Signs and symptoms of a pulmonary embolism include which of the following?
Share on PinterestSharp, stabbing pains in the chest may indicate pulmonary embolism.

Symptoms of pulmonary embolisminclude:

  • chest pain, a sharp, stabbing pain that might become worse when breathing in
  • increased or irregular heartbeat
  • dizziness
  • difficulty catching breath, which may develop either suddenly or over time
  • rapid breathing
  • a cough, normally dry but possibly with blood, or blood and mucus

Severe symptoms call for immediate emergency medical assistance.

More severe cases may result in shock, loss of consciousness, cardiac arrest, and death.

Treatment

Share on PinterestExercise is one of the best ways to prevent pulmonary embolism.

Treatments for embolism aim to:

  • stop the clot from growing
  • prevent new clots from forming
  • destroy or remove any existing clot

A first step in treating most embolisms is to treat shock and provide oxygen therapy.

Anticoagulant medications, such as heparin, enoxaparin, or warfarin are usually given to help thin the blood and prevent further clotting.

People who need anticoagulant medications should seek treatment with an anticoagulant management service, not their primary care physician.

Clot-busting drugs called thrombolytics may also be administered. However, but these carry a high risk of excessive bleeding. Thrombolytics include Activase, Retavase, and Eminase.

If the patient has low blood pressure, dopamine may be given to increase pressure.

The patient will normally have to take medications regularly for an indefinite amount of time, usually at least 3 months.

Prevention

A number of measures can reduce the risk of a pulmonary embolism.

  • A high-risk patient may use anticoagulant drugs such as heparin or warfarin.
  • Compression of the legs is possible, using anti-embolism compression stockings or pneumatic compression. An inflatable sleeve, glove, or boot holds the affected area and increases pressure when required.

Compression methods prevent blood clots by forcing blood into deep veins and reducing the amount of pooled blood.

Other ways to decrease the risk include physical activity, regular exercise, a healthy diet, and giving up or avoiding smoking tobacco.

Causes

Share on PinterestA blood clot typically forms in the arm or leg, eventually managing to break free, traveling through the circulatory system.

A pulmonary embolism occurs when an embolus, usually a blood clot, blocks the blood flowing through an artery that feeds the lungs.

A blood clot may start in an arm or leg, known as deep venous thrombosis (DVT).

After that, it breaks free and travels through the circulatory system towards the lungs. There, it is too large to pass through the small vessels, so it forms a blockage.

This blockage stops blood from flowing into a part of the lung. This causes the affected section of the lung to die through lack of oxygen.

Rarely, a pulmonary embolism can result from an embolus that is formed from fat droplets,amniotic fluid, or some other particle that enters the bloodstream.

Diagnosis

To reach a diagnosis, the doctor will look at the patient’s history and consider whether an embolism is likely. They will carry out a physical examination. Diagnosis can be challenging because other conditions have similar symptoms.

Tests for diagnosing pulmonary embolism include:

  • a mathematical model thathelps a doctor predictthe course of DVT and the risk of an embolism
  • d-Dimer test, a blood test that can diagnose thrombosis that can rule out further testing if it produces a negative result
  • pulmonary V/Q scan, two tests that analyze the ventilation and structural properties of the lungs and give off less radiation than a CT
  • computerized tomography (CT) scan, which can reveal abnormalities in the chest, brain, and other organs, and in cases where a V/Q is not possible
  • electrocardiogram (EKG), to record the electrical activity of the heart
  • arterial blood gas study, to measure oxygen, carbon dioxide, and other gases in the blood
  • chest X-rays, to generate a picture of the heart, lungs, and other internal organs
  • ultrasound of the legs, to measure the speed of blood flow velocity and any changes
  • pulmonary angiogram, to reveal blood clots in the lungs
  • magnetic resonance imaging (MRI), to obtain detailed pictures of internal structures

Risk factors

The risk of developing a pulmonary embolismincreases with age. People who have conditions or diseases that increase the risk of blood clotting are more likely to develop pulmonary embolisms.

A person has a higher risk of pulmonary embolism if they have, or have had a blood clot in the leg or arm (DVT), or if they have had a pulmonary embolism in the past.

Long periods ofbed rest or inactivityincrease the risk of DVT and, therefore, increase the risk of pulmonary embolism. This could be a long flight or car ride.

When we do not move much, our blood pools in the lower parts of our body. If blood is moving around less than normal, a blood clot is more likely to form.

Damaged blood vessels also increase the risk. This can occur because of injury or surgery. If a blood vessel is damaged, the inside of the blood vessel may become narrower, increasing the chances of a blood clot forming.

Other factor risk include certain cancers,inflammatory bowel disease, obesity, pacemakers, catheters in the veins, pregnancy, estrogen supplements, a family history of blood clots, and smoking.

Outlook

With effective and timely treatment, most people who experience a pulmonary embolism can make a full recovery.

The condition carries a high risk of fatality. However, early treatment can dramatically reduce this risk.

The period of highest risk is in this hours after the embolism first occurs. The outlook is also worse if the embolism was caused by an underlying condition, such as a type of cancer.

What is a pulmonary embolism warning signs?

Shortness of breath. Chest pain that may become worse when breathing in. Cough, which may contain blood. Leg pain or swelling.

What is the most common presenting symptom in pulmonary embolism?

The most common presenting symptom is dyspnea followed by chest pain (classically pleuritic but often dull) and cough. However, many patients, including those with large PE, have mild or nonspecific symptoms or are asymptomatic.