The most common cause of a pulmonary embolism is a blood clot (thrombus) in a large leg vein of the leg that breaks off and travels to the lungs (embolus).An embolus may be from clots in other parts of the body.Or they may be made up of other solids, liquids, or gases that travel to the lungs.he most common cause of a pulmonary embolism is a blood clot (thrombus) in a large leg vein of the leg that breaks off and travels to the lungs (embolus).
Diuretics are used in pulmonary hypertension to manage peripheral edema. The use of loop diuretics (eg, furosemide, bumetanide) requires potassium supplementation and close monitoring of serum potassium.
Primary hypertension is also referred to as essential or idiopathic high blood pressure. Primary hypertension affects 90% to 95% of all hypertensive patients. No known cause has been identified for primary hypertension.