329 results found
Medical tests
… Cortisol in Urine Test On this page: Test Overview Why It Is Done How To Prepare How It Is … Cortisol levels can be affected by many things, such as physical or emotional stress, strenuous activity, infection, or injury. Normally, cortisol levels …
Medical tests
… Thyroid Hormone Tests On this page: Test Overview Why It Is Done How To Prepare How It Is … your voice box (larynx). The thyroid gland uses iodine from food to make two thyroid hormones : thyroxine ( T4 ) and … newborns are screened for congenital hypothyroidism. Older children also need thyroid hormones to grow and develop …
Medical tests
… Cholesterol and Triglycerides Tests On this page: Test Overview Why It Is Done How To Prepare How It Is … and triglyceride testing is done: As part of a routine physical examination to screen for high cholesterol and high … that you have a familial lipid disorder. footnote 3 For children and teens, test results are slightly different than …
Medical tests
… Cortisol in Blood Test On this page: Test Overview Why It Is Done How To Prepare How It Is … Cortisol levels can be affected by many conditions, such as physical or emotional stress, strenuous activity, infection, or injury. Normally, cortisol levels …
Medical tests
… Renin Blood Test On this page: Test Overview Why It Is Done How To Prepare How It Is … licorice for 2 weeks before the test. Do not eat or drink foods that contain caffeine the day before the test. Natural … Your doctor will also look at your results based on your age, health, and other factors. A value that isn't in the …
Medical tests
… Potassium (K) in Blood Test On this page: Test Overview Why It Is Done How To Prepare How It Is … cancer cells can also make potassium levels high. Many foods are rich in potassium, including bananas, orange … enlargement of certain kidney cells. It is more common in children and may be linked to an abnormally short stature …
Medical tests
… Lung Function Tests On this page: Test Overview Why It Is Done How To Prepare How It Is … that doesn't restrict your breathing in any way. Avoid food or drinks with caffeine. Caffeine can cause your … or discomfort, tell the therapist right away. Risks For a healthy person, there's little or no risk in taking these …
Medical tests
… Electrophysiology Tests for the Eyes On this page: Test Overview Why It Is Done How To Prepare How It Is … signals needed for vision. These tests measure electrical activity that occurs in your eye when you look at something. … response (VER): Follow your doctor's instructions about eating to avoid low blood sugar. Avoid caffeine within 12 …
Medical tests
… Chloride (Cl) Test On this page: Test Overview Why It Is Done How To Prepare How It Is … Chloride is absorbed by your intestines when you digest food. Extra chloride leaves your body in your urine. … caused by: Dehydration , such as from diarrhea or vomiting. Eating a lot of salt. Kidney disease. An overactive …
Medical tests
… Alkaline Phosphatase Test On this page: Test Overview Why It Is Done How To Prepare How It Is … before the test. The ALP level generally goes up after eating, especially after you eat fatty foods. Tell your doctor ALL the medicines and natural health …
