What's the treatment for a blood clot in the lungs of 80 year old female?

See your doctor. There are many things doctors consider when recommending "best" treatment. Generally it comes down to a blood thinner (there are several) vs a filter (also many types) to prevent more big clots from going to the lung. The doctor must carefully assess the risks and benefits on an individual basis. "best" treatment is a case by case assessment.

Related Questions

Blood clot in the lungs?

&? Likely came from somewhere else in the body, usually the legs. Many risk factors are identified, including long travel, surgery, and genetic predisposition. Treatment is blood thinners. They can be deadly. Read more...
Pulmonary embolism. Unexplained shortnesss of breath, with or without chest pain usualy sharp. Immidiate visit to hospital getting lung scans nucllear or ct scan will confirm the disease. Treated with blood thinners to break the clot and then to prevent clots inside the blood vessel. More risk in old, obese people with cancer, leg surgery, blood clot preventing factor deficiency or blood clotting factor excess, . Read more...
Can be dangerous. A blood clot in the lungs can be quite dangerous, especially if it blocks outflow of blood from the heart. Many times it arises from the veins of the legs, but they can also come from the pelvis or even arms. Patients with conditions such as cancer can be more prone to developing blood clots. Typically, people experience sudden onset of chest pain or shortness of breath. Read more...

Now on lifelong blood thinning treatment after blood clots in lungs twice the past 2 years. What's the risk og getting new clots? INR is constant 2, 5

Repeat clot risk. According to American College Chest Physicians: After a second episode of unprovoked VTE – 15 percent for the first year; 7.5 percent/year thereafter. This is without anticoagulation and assumes you had no risk factors for past episodes (genetic predisposition, trauma, surgery, pertinent medication etc.). Since recurrence can be deadly, we recommend blood thinners for life unless ..(see comment) Read more...