165 results found
Medical tests
… Lung Cancer Screening: Low-Dose Spiral CT Scan On this page: Test Overview Why It … your doctor recommends lung cancer screening, you'll have a low-dose computed tomography (CT) scan of your chest once a … around your body. This doughnut-shaped machine sends low-dose X-rays, or radiation, through your chest to make …
Medical tests
… substances through the blood. When prealbumin levels are lower than normal, it may be a sign of a poor diet (malnutrition). Your doctor may use the results of this … test to be sure that a poor diet is the reason for your low prealbumin levels. Why It Is Done A prealbumin blood …
Medical tests
… your BUN level rises. Heart failure , dehydration , or a diet high in protein can also 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 …
Medical tests
… is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the bones release calcium to bring it … As blood calcium levels get high, phosphate levels get low, and the opposite is also true. It is important to get … in the urine. See how much calcium you are getting in your diet and how well it's being absorbed by your intestines. …
Medical tests
… a person's recent intake of folate and folic acid in the diet. Folate is found in foods such as liver; citrus fruits; … B12 to use folate. So if vitamin B12 levels are very low, folate can't be used by the cells, and high levels of … is not a reliable way to test for a vitamin B12 deficiency. Low values Low folate levels can also mean that you have a …
Medical tests
… is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the bones release calcium to bring it … As blood calcium levels get high, phosphate levels get low, and the opposite is also true. It is important to get … test can't be used to check for a lack of calcium in your diet or for the loss of calcium from the bones ( …
Medical tests
… BUN-to-creatinine ratio. Kidney disease or blocked urine flow from your kidney causes both BUN and creatinine levels … caused by a life-threatening infection, shock , cancer, or low blood flow to the kidneys. Dehydration . Muscle injury … can also mean some types of severe liver disease or a diet very low in protein. Pregnancy can also cause low …
Medical tests
… levels of both renin and aldosterone. If renin levels are low and aldosterone levels are high, a tumour may be present … especially when potassium levels in the blood are low. How To Prepare For 2 to 4 weeks before the test, you … renin test, you may be asked to follow a special low-sodium diet. You may be asked to not eat or drink anything for 8 …
Medical tests
… test. Why It Is Done You may need this test if you: Have low levels of calcium or phosphate . Have osteoporosis or low bone density . Had a broken bone after a fall from … enough sunlight. Not getting enough vitamin D in your diet. Medical Tests: Questions to Ask …
Medical tests
… ) is present. Check to see if iron treatment to raise or lower the iron level is working. How To Prepare In general, … inflammatory conditions (such as arthritis or lupus ), or a diet that is too high in iron. Too much iron in body organs, … as the pancreas or heart, can affect how the organ works. Low values Low ferritin levels often mean an iron deficiency …
