321 results found
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview An alkaline phosphatase … D deficiency, or damaged liver cells. If the ALP level is high, more tests may be done to find the cause. The amounts … is working. How To Prepare If you are having a follow-up ALP test, you may be asked to not eat or drink for 10 …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A ferritin blood test … ) is present. Check to see if iron treatment to raise or lower the iron level is working. How To Prepare In general, … that isn't in the normal range may still be normal for you. High values Very high ferritin levels can mean a large …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A vitamin D test measures … test. Why It Is Done You may need this test if you: Have low levels of calcium or phosphate . Have osteoporosis or … that isn't in the normal range may still be normal for you. High values High levels of vitamin D can be caused by: …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A progesterone test … begins. During pregnancy, the placenta also produces high levels of progesterone, starting near the end of the … . Overproduction of hormones by the adrenal glands . Low values Low progesterone values may be caused by: …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview An estrogen test measures … her menstrual cycle . After menopause , it drops to a very low but constant level. Estriol levels are most often … results as they relate to your symptoms and past health. High values High values may be caused by: Ovarian …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A follicle-stimulating … of FSH varies throughout a woman's menstrual cycle and is highest just before she releases an egg (ovulates). In men, … ovarian function before age 40 (premature ovarian failure). Low egg supply (ovarian reserve). Menopause has occurred. …
Medical tests
… It Is Done How It Feels Risks Results What Affects the Test Related Information Test Overview A homocysteine … Wrap an elastic band around your upper arm to stop the flow of blood. This makes the veins below the band larger so … with you in relation to your symptoms and past health. High values High values of homocysteine may be caused by: …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview Galactose is a sugar that … with galactosemia doesn't have one of these enzymes, so high levels of galactose build up in the blood or urine. … breast milk or formula. Babies with galactosemia need foods low in galactose in order to gain weight and to prevent …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A thyroid-stimulating … (congenital hypothyroidism) may, in severe cases, have below-average intelligence. Older children also need thyroid … Results are usually available in 2 to 3 days. A slightly high TSH value may not require treatment. The doctor will …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A cortisol test measures … Cortisol is made by the adrenal glands. Cortisol levels get higher when the pituitary gland releases adrenocorticotropic … morning hours and are highest about 7 a.m. They drop very low in the evening and during the early phase of sleep. But …
