309 results found
Medical tests
… body's cells. It's also made from the foods you eat. Your kidneys take uric acid out of your blood and put it into … too high. And if your kidneys aren't working the way they should, the level of uric acid in the urine can get too low. … period. You start collecting your urine in the morning. When you first get up, empty your bladder. But do not save …
Medical tests
… such as transferrin or ferritin, or stored in body tissues. When red blood cells die, their iron is released and carried … lining the joints. Overuse of iron supplements. Bleeding. Kidney failure. Severe infection. Medical …
Medical tests
… produced by cells, called G cells, in the stomach lining. When food enters the stomach, G cells trigger the release of … able to produce gastric acid, such as atrophic gastritis. Kidney failure . Diseases such as G-cell hyperplasia, peptic ulcers …
Medical tests
… rest of it is stored in tissues throughout the body. The kidneys help control the amount of phosphate in the body. … must collect all the urine you produce in a 24-hour period. When you first get up in the morning, urinate into the … has a different range for what's normal. Your lab report should show the range that your lab uses for each test. The …
Medical tests
… puberty (also called precocious puberty). Puberty is early when it starts in females younger than age 8 and in males … why sexual features or organs are not developing when they should (delayed puberty). Find out (usually with a urine … hormone values may mean: Anorexia nervosa . Pituitary gland failure. Damage to a part of the brain called the …
Medical tests
… work. Potassium levels often change with sodium levels. When sodium levels go up, potassium levels go down. When … glands . Potassium levels can be affected by how the kidneys are working, the blood pH , and the amount of … has a different range for what's normal. Your lab report should show the range that your lab uses for each test. The …
Medical tests
… sex organs (testicles or ovaries) are working as they should. Why It Is Done The amounts of FSH and other hormones … test takes The test will take a few minutes. How It Feels When a blood sample is taken, you may feel nothing at all … Loss of ovarian function before age 40 (premature ovarian failure). Low egg supply (ovarian reserve). Menopause has …
Medical tests
… as soon as your baby is 10 days old, but it is often done when a baby is 2 to 4 weeks of age. Your child may need more … insufficiency or Addison's disease . Hypothyroidism . Kidney failure . Medical Tests: Questions to …
Medical tests
… the level of calcium in the blood is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the … cause symptoms. High calcium levels in the urine can cause kidney stones. Why It Is Done A urine calcium test is done … has a different range for what's normal. Your lab report should show the range that your lab uses for each test. The …
Medical tests
… rest of it is stored in tissues throughout the body. The kidneys help control the amount of phosphate in the blood. … the levels of calcium and phosphorus in your blood. When the phosphorus level is measured, a vitamin D level, … affect the test results. Your doctor will tell you if you should stop taking any of them before the test and how soon …
