Magnesium blood test
A magnesium blood test is carried out to see if your body has enough magnesium. Most people get sufficient magnesium from food.
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Guide to blood testing
Blood tests can be used to assess your general health. Learn more about blood testing.
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Blood tests A-Z
Browse our index of articles on blood tests to learn about the test you are having. Information includes what is being tested and how to prepare for the test.
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Oestrogen blood test
Many women at some time have a blood test for oestrogen. It might be during pregnancy, if their menstrual cycle is unusual, or for some other reason.
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Testosterone blood test
A testosterone blood test can show how much testosterone, an important sex hormone, is in your body. Men usually have much more testosterone than women.
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Calcium blood test
A calcium test provides information about how much calcium is in your blood.
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Full blood count
A full blood count is a common blood test for general health, which can also provide information about a range of conditions.
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D-dimer test
The D-dimer test is a blood test used to help check for or monitor blood clotting problems.
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HbA1c test
An HbA1c is a type of blood test which is used to help diagnose and monitor people with diabetes.
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Iron studies
Iron studies are blood tests that look at how much iron is in your blood and other cells. Too little or too much iron can cause problems.
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Diabetes diagnosis
Diabetes is diagnosed by a blood test. It is important to be diagnosed early so treatment can be started as soon as possible. Find out how diabetes is diagnosed.
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