A homocysteine test measures the amount of the amino acid homocysteine in the blood. You may have high levels of homocysteine when cholesterol, white blood cells, calcium, and other substances (plaque) build up in your blood vessels.
The slit lamp exam uses an instrument that provides a magnified, three-dimensional (3-D) view of the different parts of the eye. During the exam, your health professional can look at the front parts of the eye, including the clear, outer
A CD4+ count is a blood test to determine how well the immune system is working in people who have been diagnosed with human immunodeficiency virus (HIV). CD4+ cells are a type of white blood cell. White blood cells are important
Sputum cytology examines a sample of sputum (mucus) under a microscope to determine whether abnormal cells are present. Sputum is not the same as saliva. Sputum is produced in the lungs and in the airways leading to the lungs. Sputum has
Hemochromatosis gene (HFE) testing is a blood test used to check for hereditary hemochromatosis , an inherited disorder that causes the body to absorb too much iron. The iron then builds up in the blood, liver, heart, pancreas, joints, sk
An aldosterone test measures the level of aldosterone (a hormone made by the adrenal glands), in the urine. Aldosterone helps regulate sodium and potassium levels in the body. This helps control blood pressure and the bala
A test for catecholamines measures the amount of the hormones epinephrine, norepinephrine, metanephrine, and dopamine in the blood. These catecholamines are made by nerve tissue, the brain, and the adrenal glands. Catecholamines help
A cortisol test is done to measure the level of the hormone cortisol in a 24-hour sample of urine. The cortisol level may show problems with the adrenal glands or the pituitary gland. Cortisol is made by the adrenal glands. Co
The inhibin A test is done to measure the amount of this hormone in a pregnant woman's blood to see if the baby may have Down syndrome. Inhibin A is made by the placenta during pregnancy.
Do you know proper first aid techniques? Different emergency situations require different plans of action.
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