272 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 … could be cancer. Why It Is Done Most people don't need routine lung cancer screening. It's only recommended for …
Medical tests
… present when the body is trying to conserve fluid and salt (sodium). When a tumour that makes aldosterone is … aldosterone level will be high while a renin level will be low. Usually a renin activity test is done when the … positions and under different conditions, such as not eating before the test or eating foods that contain a …
Medical tests
… present when the body is trying to conserve fluid and salt (sodium). When a tumour that makes aldosterone is … aldosterone level will be high while a renin level will be low. Usually a renin activity test is done when the … test. You may be asked to stop taking some medicines for about 2 weeks before the test. These include hormones (such as …
Medical tests
… between the water and the chemicals in your blood. Find out if you have severe dehydration or overhydration. Check … and electrolytes in the body. Find out if you have swallowed a poison, such as rubbing alcohol, wood alcohol, or … little water in the body ( dehydration ). High levels of salt or sugar in the blood. This may be caused by problems …
Medical tests
… or as an ingredient in cooking. Sodium is found in table salt as sodium chloride and in baking soda as sodium … including laxatives, aspirin, mouthwash, and toothpaste. Low sodium levels have many causes, such as heart failure, … sodium levels (hyponatremia) can be caused by a lot of sweating, burns, severe vomiting or diarrhea, drinking too …
Medical tests
… is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the bones release calcium to bring it … ), the extra calcium is stored in the bones or passed out of the body in urine and stool. The amount of calcium in … As blood calcium levels get high, phosphate levels get low, and the opposite is also true. It is important to get …
Medical tests
… chloride. Most of the chloride in your body comes from the salt (sodium chloride) you eat. Chloride is absorbed by your … caused by: Dehydration , such as from diarrhea or vomiting. Eating a lot of salt. Kidney disease. An overactive parathyroid gland (hyperparathyroidism). Low chloride levels may be caused by: Conditions that cause …
Medical tests
… you if and when you need to stop taking any of the following medicines that can change the RAIU test results: … health products that contain iodine, such as iodized salt, kelp, cough syrups, multivitamins, and the heart … any substance, such as the venom from a bee sting or from eating shellfish. Before an RAIU test, blood tests may be …
Medical tests
… down in your body. Urea is made in the liver and passed out of your body in the urine. A BUN test is done to see how … 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
… any medicines regularly, your doctor will talk to you about how to take these before the test. How It Is Done A … B12 to use folate. So if vitamin B12 levels are very low, folate can't be used by the cells, and high levels of … people with alcohol use disorder , certain cancers, or an eating disorder. Folate Deficiency …
