271 results found
Medical tests
… gland that lies in front of your windpipe (trachea), just below your voice box (larynx). The thyroid gland uses iodine … you might feel a quick sting or pinch. Heel stick A brief pain, like a sting or a pinch, is usually felt when the … growths (nodules). Taking too much thyroid medicine. Low values Low thyroid hormone levels ( hypothyroidism ) may …
Medical tests
… are problems with the urinary system and to see how urine flows out of the bladder. This test, also called a VCUG, uses … A VCUG can show if urine from the bladder is flowing back up toward the kidneys. This is called vesicoureteral … takes 30 to 45 minutes. How It Feels This test isn't painful, and you won't feel anything when the X-rays are …
Medical tests
… tap, a needle is carefully inserted into the spinal canal low in the back (lumbar area). Samples of CSF are collected. The … when the numbing medicine is given. You may feel a brief pain when the spinal needle is inserted or repositioned. …
Medical tests
… called an autoimmune disease . If your immune system makes low levels of antibodies, you may have a greater chance of … You can be born with an immune system that makes low levels of antibodies, or your system may make low levels of antibodies in response to certain diseases, …
Medical tests
… the thyroid gland . If the blood calcium level is too low, the parathyroid glands release more PTH. This causes … process is reversed. PTH levels that are too high or too low can cause problems with the kidneys and bones and cause … gland growth (hyperplasia) or a parathyroid tumour. A low level of calcium in the blood. A low blood calcium level …
Medical tests
… pregnancy, during breastfeeding, or at times when there are low levels of iron in the body (such as after bleeding). The … capacity (TIBC), and transferrin saturation. High and low values The values for serum iron, total iron-binding … (TIBC), and transferrin saturation are used to see if a low amount of iron in the body is from iron deficiency …
Medical tests
… kidney disease High beta globulin: Very high cholesterol; low iron (iron-deficiency anemia) High gamma globulin: … infection; liver disease; some forms of cancer Low values Low values may be caused by many conditions. Some of the …
Medical tests
… for the body's needs. But if your potassium levels get low, it can take some time for your body to start holding on … is still passed in the urine, so you may end up with very low levels of potassium in your body, which can be dangerous. A potassium level that is too high or too low can be serious. Abnormal potassium levels may cause …
Medical tests
… make your BUN level higher. Liver disease or damage can lower your BUN level. A low BUN level can occur normally in the second or third … BUN-to-creatinine ratio. Kidney disease or blockage of the flow of urine from your kidney causes both BUN and creatinine …
Medical tests
… at the site. Some people's blood glucose levels drop very low toward the end of the test. But some people feel like their sugar levels are low, when their levels actually are not low. Symptoms of low blood glucose include weakness, hunger, …
