Polycythemia vera (PV) causes your bone marrow to make too many red blood cells. You need these cells to carry oxygen around your body, but too many of them can make your blood thicken and form clots. Sometimes blood clots lead to a heart attack or stroke. Treatments lower the number of red blood cells and prevent blood clots. They also relieve other symptoms, like headaches and vision problems. With the right treatment, you can stay healthy --
and feel better. This is the main PV treatment. It removes some of your blood to get rid of extra red blood cells. It also lowers your red blood cell count, so your blood thickness starts to get closer to normal. You may get phlebotomy when your doctor first tells you that you have PV. It's a lot like donating blood. The doctor or nurse will put a needle into a vein in your arm and remove a small amount of blood from
your body. The goal is to lower your hematocrit level. Hematocrit is the percentage of red blood cells compared with the total amount of blood. You'll get this treatment once a week or month until your hematocrit goes down to around 45%. Once your red blood cell level has dropped, you’ll get phlebotomy less often. After your red blood cell level drops, you'll take one of these prescription drugs
to slow the production of new red blood cells in your bone marrow. Hydroxyurea is a cancer drug that slows down the growth of new cells in your body. In PV, it lowers the number of red blood cells and platelets, which are cells that help blood clot. If you take this drug, you may not need phlebotomy. Hydroxyurea can also prevent or treat an enlarged spleen -- a complication of
PV. Hydroxyurea comes in a capsule that you take by mouth. It can cause side effects, such as: It’s very unlikely, but it may cause cells to turn cancerous. Though the risk is very low, your doctor should check you for cancer while you take hydroxyurea. Interferon-alfa (Intron A) works on your immune system. It targets quickly dividing red blood cells to slow their production. You take interferon-alfa as a shot just under your skin. Some possible side effects from interferon-alfa are: A long-acting version, called peginterferon alfa (Pegasys), has fewer side effects. Ropeginterferon alfa-2b-njft (Besremi) is the first interferon therapy specifically
approved for polycythemia vera. It attaches to interferon alfa/beta receptors (IFNAR), triggering several reactions that cause the bone marrow to produce fewer red blood cells. Administered by injection, it is administered every two weeks. Some possible side effects include:
Aspirin thins your blood and prevents clots. It also eases symptoms such as burning in your hands and feet, itching, and bone pain. Your doctor might recommend that you take a low dose of aspirin every day. Daily aspirin use has some risks. It can make bleeding more likely, especially in the stomach and other parts of your digestive system. Talk to your doctor about these and other risks before you start to take aspirin regularly. Your doctor may also consider other treatments such as anagrelide, busulfan (Myleran), imatinib (Gleevec), and ruxolitinib (Jakafi). These medicines help certain types of blood cells work better, so your blood flow improves and is less thick. They might be an option if other treatments don’t work or if you can't take drugs like hydroxyurea and interferon-alfa. Each drug is different, so your doctor will talk with you about side effects and what the latest research shows. Radiation TherapyThis treatment slows red blood cell production in bone marrow, which thins your blood and helps it flow more easily. Yet doctors don't use radiation therapy very often for PV because it also can make blood cancer (leukemia) more likely. To Feel Better During TreatmentIn addition to your medical plan, use these self-care tips to help you feel better:
It’s normal to have a mix of emotions when you have a serious condition. If your concerns start to worry you or get you down, talk to your doctor, a therapist or counselor, or a support group. Let close friends or family members know what you’re going through and how they can help. Can you get polycythemia vera from a blood transfusion?Polycythemia is considered to be either a genetic disorder of hematopoietic cells or an adaptive response to chronic medical disease. Polycythemia can also result from medical error, caused by over-transfusion.
Which explanation will the nurse provide as the rationale for increased risk of thrombosis to a client with polycythemia vera?A patient with polycythemia has an increased risk of venous thrombosis, as his/her blood is more viscous. It is important to maintain adequate hydration. Keeping a patient with a high RBC count dehydrated, such as being NPO for an extended time, may increase risk of venous thrombosis formation.
Which disorder does the nurse recognize is the most common cause of mortality in patients with polycythemia vera?Blood clots
The most urgent risk from polycythemia vera is the tendency for blood clotting. A blood clot that travels to your heart or brain can cause a heart attack or stroke.
Which treatment is likely to be planned for a patient who develops pernicious anemia?Pernicious anemia and other vitamin B12 deficiency anemia due to small intestinal malabsorption can be treated with an intramuscular B12 injection by your physician. High-dose oral vitamin B12 supplementation may be an effective option for some people with pernicious anemia as well.
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