313 results found
Medical tests
… measures the amount of the amino acid homocysteine in the blood. Why It Is Done A homocysteine blood test is done to: … ball over the needle site as the needle is removed. Put pressure on the site and then put on a bandage. How It Feels … with you in relation to your symptoms and past health. High values High values of homocysteine may be caused by: …
Medical tests
… Test Overview A reticulocyte count is a blood test that measures how fast red blood cells called … prematurely, such as hemolytic anemia . Also, being at high altitudes may cause reticulocyte counts to rise, to … ball over the needle site as the needle is removed. Put pressure on the site and then put on a bandage. How It Feels …
Medical tests
… A chloride test measures the level of chloride in your blood or urine. Chloride is one of the most important … balance. It also helps maintain proper blood volume, blood pressure, and pH of your body fluids. Tests for sodium, … kidney or adrenal gland problems. Help find the cause for high blood pH. A condition called metabolic alkalosis can be …
Medical tests
… ("tox screen") checks for drugs or other chemicals in your blood, urine, or saliva. Drugs can be swallowed, inhaled, … (therapeutic) range, or Above the therapeutic range, or High enough that they may be toxic. High values High levels may be caused by a drug overdose, …
Medical tests
… called a catheter that is inserted into the heart through blood vessels. A cardiac catheterization can check blood … catheterization is done to: Check on blood flow and blood pressure in the chambers of the heart. Check on blood flow … products you take. Some may increase the risk of problems during your test. Your doctor will tell you if you should …
Medical tests
… also may be done to take the fluid out to relieve belly pressure or pain. Why It Is Done Paracentesis may be done … How To Prepare If you take a medicine that prevents blood clots, your doctor may tell you to stop taking it … Several tests may be done on the fluid. Cell counts. A high number of white blood cells (WBCs) in the fluid may …
Medical tests
… of CSF are collected. The samples are studied for colour, blood cell counts, protein, glucose, and other substances. … fungi grow in the culture, an infection may be present. The pressure of the CSF also is measured during the procedure. … the space surrounding the spinal cord. If the pressure is high, it may be causing certain symptoms. A spinal tap may …
Medical tests
… vitamin B12 test measures the amount of vitamin B12 in the blood. The body needs this B vitamin to make blood cells and … ball over the needle site as the needle is removed. Put pressure on the site and then put on a bandage. How It Feels … (SI units) 110–1500 picograms per millilitre (pg/mL) High values High levels of vitamin B12 can occur in liver …
Medical tests
… Test Overview Hemochromatosis gene (HFE) testing is a blood test used to check for hereditary hemochromatosis, an … this disease. This test might be done if you have high iron levels in your blood. This test helps to find out … or pinch. If you get a cheek test, you will feel gentle pressure on the inside of your cheek from the swab. Risks …
Medical tests
… to have this test. Cervical cancer is often caused by a high-risk type of the human papillomavirus (HPV) . Talk to … schedule the test when you're not having your period, since blood can interfere with the results of the test. If your … at under a microscope. How It Feels You may feel some pressure or mild discomfort when the speculum is placed in …
