What is a pulmonary embolism?

• A. Blockage of a coronary artery
• B. Blocking of pulmonary artery due to blood clot
• C. Inflammation of lung tissue
• D. Infection in the lungs

Answer: (B)

A pulmonary embolism occurs when a blood clot travels to the lungs and obstructs one or more pulmonary arteries. This blockage can be life-threatening and can lead to decreased blood flow to the lung tissue, impairing oxygen exchange and potentially causing significant respiratory distress and cardiovascular complications.

The development of a pulmonary embolism often originates from deep vein thrombosis (DVT), where a clot forms in the deep veins of the legs or pelvis and then travels to the lungs. Symptoms can include shortness of breath, chest pain, and coughing up blood, making prompt diagnosis and treatment essential.

Understanding this condition is vital for recognizing its serious nature and the importance of early intervention to prevent complications or fatalities.