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).
Ambrisentan is an endothelin receptor antagonist indicated for pulmonary arterial hypertension in patients with WHO class II or III symptoms. It improves exercise ability and decreases progression of clinical symptoms.
Hydrochlorothiazide (abbreviated HCTZ, HCT, or HZT) is a diuretic medication often used to treat high blood pressure and swelling due to fluid build up. Other uses include diabetes insipidus, renal tubular acidosis, and to decrease the risk of kidney stones in those with high calcium level in the urine. For high blood pressure it is often recommended as a first line treatment.