329 results found
Medical tests
… Test Overview A breath alcohol test is an estimate of your blood alcohol concentration (BAC). The test measures … balloon and a tube) containing crystals that change colour when exposed to alcohol from your breath. This device is … See the test instructions for how to read your results and what they mean. Store the testing device correctly. If the …
Medical tests
… The amount of folate in red blood cells measures the level when the cell was made, as much as 4 months earlier. This … usually affected by the amount of folate and folic acid in your diet each day. Folate deficiency can result in a type … the site. Results Normal Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… problems or birth defects. Health Tools Health Tools help you make wise health decisions or take action to improve … birth defects (especially Down syndrome ) during pregnancy. When the test for estriol is done with hormone inhibin A, … the menstrual cycle . Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… space (subarachnoid space) between the bones in your spine (spinal canal). A myelogram may be done to find a … blood thinners.) Make sure that you understand exactly what your doctor wants you to do. Be sure you have someone … You may feel a quick, sharp pain down your buttock or leg when the needle is moved in your spine. You may find it hard …
Medical tests
… measures catecholamine levels over 24 hours. How To Prepare You may be asked to avoid certain foods and fluids for 2 to … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all … the site. Results Normal Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… work. Potassium levels often change with sodium levels. When sodium levels go up, potassium levels go down, and when … kidneys are working, the blood pH , the amount of potassium you eat, the hormone levels in your body, severe vomiting, … at the site. Results Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… in the brain caused by too much CSF. How To Prepare Tell your doctor ALL the medicines and natural health products … it before your test. Make sure that you understand exactly what your doctor wants you to do. These medicines increase … skin. Then a long, thin needle is put in the spinal canal. When the needle is in place, the solid central core of the …
Medical tests
… from a parent to a child (inherited). How To Prepare Tell your doctor if you are getting iron therapy for iron … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all … in several days. Normal Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… for the presence of the Y chromosome. This may be done when a newborn's sex is not clear. How To Prepare You do not need to do anything before you have this test. … . This type of counsellor is trained to help you understand what karyotype test results mean for you, such as your risk …
Medical tests
… or a negative electrical charge, and they move in fluid when placed in an electrical field. Serum protein … poor nutrition. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells … in 2 to 3 days. Normal Each lab has a different range for what's normal. Your lab report should show the range that …
