Blood consists of a liquid called plasma, red blood cells, white blood cells and platelets. Red bloods cells deliver oxygen from your lungs to your tissues and organs, white blood cells fight infection as part of your body's defense system, and platelets help blood clot when you experience a cut or wound. Blood is a constantly circulating fluid providing the body with nutrition, oxygen, and waste removal. Your blood group depends on which antigens occur on the surface of your red blood cells.
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A new study finds that switching from metformin to sulfonylureas to control blood sugar levels may significantly increase the risk of major complications.
Bleeding is usually the earliest sign of a pregnancy loss. However, some miscarriages occur without bleeding, or bleeding may follow other symptoms. It is important to remember that new symptoms do not always signal a pregnancy loss and that the risk declines after the first weeks of pregnancy. Learn more here.
Pernicious anemia is a condition where there is a lack of red blood cells. A vitamin B-12 deficiency causes it when the body is unable to absorb this nutrient effectively. Tiredness, shortness of breath, slow reflexes, and pale skin are among the symptoms. Find out here how doctors treat this immune system problem.
New research suggests that the results of a 'fecal occult blood test' may help to predict the risk of premature death from all causes.
End-stage kidney disease is the last stage of chronic kidney disease when the kidneys stop functioning properly. Without sufficient kidney function, waste products begin to build up in a person's blood, causing a variety of symptoms. In this article, learn about the causes and treatment of end-stage kidney disease.
High blood pressure, also called hypertension, has many potential symptoms. These may include back pain, difficulty sleeping, and shortness of breath. Some research also suggests that very high blood pressure can cause headaches. Treatment depends on the causes. Learn more about high blood pressure and headaches here.
Lisinopril is an oral medication used to treat hypertension (high blood pressure) and heart failure. Learn about side effects, warnings, dosage, and more.
A serum albumin test measures the levels of albumin in the blood. It is done to check for liver disease if other symptoms like unexpected weight loss are present. The test is safe overall while low albumin levels may indicate an underlying health problem. Treatment may be needed if levels are outside the normal range.
There are many things that people can eat and drink that may help to keep the blood thin and reduce the chances of dangerous clots developing. These include ginger, garlic, and turmeric. Learn more about 11 potential natural blood thinners, including foods, drinks, and supplements here.
A creatinine blood test measures how much creatinine is in the blood. It is used to check kidney function, and high levels may indicate the kidney is damaged. The procedure involves drawing a small amount of blood for testing, and there is no special preparation necessary. Learn more about the test here.
Poor circulation has a range of potential causes, including diabetes and atherosclerosis. Symptoms include numbness in the extremities, digestive problems, and fatigue. Treatment depends on the cause, but quitting smoking and losing weight can help. Learn more about poor circulation and how to improve it here.
Chlorophyll is a natural pigment that occurs in many green vegetables. It has many potential health benefits due to its deodorant, anti-aging, wound-healing, and blood-building properties. We examine the evidence supporting these potential benefits and explain how to include chlorophyll in the diet.
A blood gas test is also called an arterial blood gas test or a blood gas analysis. Results show blood oxygen and carbon dioxide levels, pH levels, and lung function. Doctors often use the test in emergency situations, when they need to determine why a person is having trouble breathing. Learn more about the test here.
Anemia occurs when the body lacks red blood cells. A person may have a condition that destroys these cells, or the body may not produce enough. Adding iron-rich foods to the diet can help. Here, learn which foods contain high levels of iron and which make absorbing it harder. We also give some meal plan ideas and more.
Cortisol is necessary for many bodily functions, including the stress response and regulating sleep. High cortisol levels may raise blood pressure and affect mood. It is possible to lower cortisol by making some lifestyle changes, such as eating a more healthful diet and getting better sleep. Learn more here.
Nosebleeds can occur at any time, and some people only experience them at night. A range of factors may be responsible, including colds, chemical exposure, and heavy alcohol use. Home care can stop most nosebleeds, but if they recur, a person should see a doctor. Here, learn more about nighttime nosebleeds.
A cortisol level test measures the amount of cortisol in the blood. This hormone plays a crucial role in the body. Doctors use cortisol level tests to check for signs of Addison’s disease, Cushing’s syndrome, and adrenal function abnormalities. Learn about the cortisol level test and what the results indicate here.
Peeling nails have a range of causes, including iron deficiency and certain underlying health conditions, such as underactive thyroid. Treatment options depend on the cause but include increasing the amount of iron in the diet. Learn more about how to treat peeling nails at home, and when to see a doctor.
The chloride levels in the blood should be 96 and 106 milliequivalents per liter (MEq/L). High levels indicate hyperchloremia, while low levels indicate hypochloremia. These conditions can have many causes including severe dehydration. Treatment depends on the individual cause but may involve rehydrating. Learn more.
The differential blood test tells doctors how many of each type of white blood cell are in the body. Knowing these levels can help a doctor to diagnose a variety of acute and chronic illnesses. In this article, learn about the types of white blood cell and how to interpret the results of a differential blood test.