3208 results found
Medications
… natural substance (serotonin) that causes narrowing of blood vessels in the brain. It may also relieve pain by … have serious side effects. This medication may raise your blood pressure. Check your blood pressure regularly and tell your doctor if the results …
Health topics
… On this page: Overview Overview An A1c test is a blood test that checks your average blood sugar level over the past 2 to 3 months. This test … ways. They both help you learn more about your average blood sugar range over the past 2 to 3 months. A1c is shown …
Health topics
… oxygen and carbon dioxide exchange The lungs are where the blood picks up oxygen to deliver throughout the body and … are the tiny air sacs that allow oxygen to get into the blood. Their destruction leads to the formation of large air … during each breath. Decreased levels of oxygen in the blood and increased levels of carbon dioxide cause the …
Medications
… is used to treat the symptoms that occur with certain blood disorders (porphyrias). Hemin is not a cure for … This medication may relieve symptoms such as pain, high blood pressure, rapid heartbeat, or mental changes that may … your medical history. This medication is made from human blood. Even though the blood is carefully tested, and this …
Health topics
… the heart beats so slowly that it doesn't pump enough blood to meet the body's needs. This can cause symptoms, … an electrolyte imbalance, such as too much potassium in the blood. Many types of medicines. Examples include … concentrating. Faint, if a slow heart rate causes a drop in blood pressure. Some people don't have symptoms, or their …
Health topics
… worse very quickly. Your heart suddenly cannot pump as much blood as your body needs. Sudden heart failure causes rapid … for oxygen. These include anemia (not having enough red blood cells) and thyroid problems. Extremely high blood pressure, which can cause fluid buildup in the lungs …
Medical tests
… of the eye, called the cornea. The fundus also contains blood vessels and the optic nerve . There are two types of … branching images. These are really just the outlines of the blood vessels of the retina. Indirect ophthalmoscopy With … white deposits beneath the retina called drusen, or broken blood vessels called hemorrhages) point to macular …
Health topics
… problems. But in some people: The heart doesn't get enough blood and oxygen, which can cause chest pain. A fast, slow, … cases, this can cause sudden death. The heart doesn't pump blood well, or it doesn't relax between beats as it should. … to control your heart rate or rhythm and to prevent blood clots. If you are at high risk for sudden death from a …
Health topics
… do a physical examination and tests such as a chest X-ray, blood tests, or a CT scan to look for the cause of your … Viral infections. Chest muscle strain. Rib fracture. Blood clots in the blood vessels of the lung (pulmonary embolism). Inflammation …
Health topics
… body return to their normal state. Cooling down prevents blood from collecting (pooling) in your arms and legs and prevents cramping, increased blood pressure, dizziness, or feeling sick to your stomach. …
