156 results found
Medical tests
… cause or location of unexplained bone pain, such as ongoing low back pain. A bone scan may be done first to help … in complex bone structures such as the foot or spine. Follow-up evaluation then may be done with a computed … table, with a large scanning camera above you. It may move slowly above, below, and around your body, scanning for …
Medical tests
… all or most of your clothes above the waist. (You may be allowed to keep on your underwear if it does not get in the … of damage to cells or tissue from radiation, including the low levels of radiation used for this test. But the chance of damage from the X-rays is extremely low. It is not a reason to avoid the test. If you need an …
Medical tests
… and travels throughout your body and to your brain. This allows blood alcohol levels to increase quickly. The amount of … meter shows your BAC in a digital display window after you blow into a mouthpiece attached to the meter. This type of … driving abilities. Your driving may be impaired even with a low BAC level, such as below 0.05. The breath alcohol test …
Medical tests
… These tests are not thyroid hormone tests. High or low levels of thyroid hormones also can be signs of thyroid … after thyroid hormone tests to find the cause of high or low levels of thyroid hormones. High levels of these … if you have a goiter or symptoms of thyroid disease. The following tests may be done: Antithyroid peroxidase antibody: …
Medical tests
… into water and carbon dioxide. When the oxygen level is low, carbohydrate breaks down for energy and makes lactic … as heart failure , a severe infection (sepsis), or shock —lower the flow of blood and oxygen throughout the body. Lactic acid …
Medical tests
… of damage to cells or tissue. That's the case even with the low-level radioactive tracer used for this test. But the chance of damage is very low compared with the benefits of the test. Most of the … tumour or other growth may be present. The tracer may not flow normally from the salivary glands into the mouth. This …
Medical tests
… the spine in the neck (cervical), upper back (thoracic), or lower back (lumbosacral). The entire spine can be seen in … as the lumbar spine, may be taken. MRI may be used to check low back problems. There are two main types of MRI—the … care decisions that are important to many health problems. Low Back Pain: Should I Have an MRI? Why It Is Done An MRI …
Medical tests
… tap, a needle is carefully inserted into the spinal canal low in the back (lumbar area). Samples of CSF are collected. … spinal canal. In rare cases, a spinal tap may be used to lower the pressure in the brain caused by too much CSF. How … positions help widen the spaces between the bones of the lower spine so that the needle can be inserted more easily. …
Medical tests
… meters can store hundreds of glucose readings. This allows you to review collected glucose readings over time and … glucose levels at certain times of the day. It also allows you to quickly spot any major changes in your glucose levels. Some of these systems also allow information to be saved to a computer so that it can be …
Medical tests
… The vibration speed of a sound wave determines how high or low a sound is (pitch). The height of the sound wave … for you to hear it. Frequency, or pitch (whether a sound is low or high), is measured in vibrations per second, or hertz … The human ear can normally hear frequencies from a very low rumble of 20 Hz to a high-pitched whine of 20,000 Hz. …
