329 results found
Medical tests
… of the waste product creatinine (say "kree-AT-uh-neen") in your blood and urine. These tests tell how well your kidneys … are working normally. To find out if your kidney disease is changing. To see how well the kidneys work in people who … can also mean some types of severe liver disease or a diet very low in protein. Pregnancy can also cause low …
Medical tests
… The barium is often combined with gas-making crystals. Your doctor watches the barium move through your esophagus, stomach, and the first part of the small … often. How To Prepare You may be asked to eat a low-fibre diet for 2 or 3 days before the test. You may also be asked …
Medical tests
… pH , the amount of potassium you eat, the hormone levels in your body, severe vomiting, and taking certain medicines, … bananas, orange juice, spinach, and potatoes. A balanced diet has enough potassium for the body's needs. But if your potassium levels get low, it can take some time for …
Medical tests
… test. Do not use tobacco for 4 hours before the blood test. Your doctor may ask you to stop certain medicines, such as … or allergy remedies, including aspirin, or non-prescription diet pills for 2 weeks before the test. Having a blood … Be sure to keep warm, because being cold can also increase your levels. Ask for a blanket if you feel cold. How It Is …
Medical tests
… Check for too much or too little iron in the blood. See if your diet is providing enough iron. Find out if treatment to keep the right amount of iron in your blood is working. How To Prepare Do not eat or drink …
Medical tests
… urea nitrogen (BUN) test measures the amount of nitrogen in your blood that comes from the waste product urea. Urea is made when protein is broken down in your body. Urea is made in the liver and passed out of your … your BUN level rises. Heart failure , dehydration , or a diet high in protein can also make your BUN level higher. …
Medical tests
… through the digestive tract . After you chew and swallow your food, it moves into your stomach, where it is mixed with acid and digestive … of diarrhea. How To Prepare You may need to change your diet for a few days before having this test. You may also …
Medical tests
… if the tracer is evenly spread in the gland. This helps your doctor know if the thyroid gland is working properly. … who have had thyroid cancer surgery. How To Prepare Tell your doctor if you: Take any medicines regularly. Be sure … the test. Your doctor may ask you to eat a low-iodine diet. For an RAIU, you will swallow a dose of radioactive …
Medical tests
… in the body depends on the amount of: Calcium you get in your food. Calcium and vitamin D your intestines absorb. Phosphate in the body. Certain … 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; … usually affected by the amount of folate and folic acid in your diet each day. Folate deficiency can result in a type … hours before the test. If you take any medicines regularly, your doctor will talk to you about how to take these before …
