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Blood tests are useful tools for uncovering disorders in the human body. For many patients with diabetes, blood testing is a part of daily life. For others, routine blood tests may be ordered by a physician only once or twice a year.
Blood tests are used to diagnose diabetes as well as prediabetes, thyroid conditions and other endocrine disorders. In people with diabetes, blood tests are used to measure glucose (blood sugar) levels, to monitor the effectiveness of treatment, and to detect, prevent and delay the onset of diabetic complications.
Though traditionally performed in physician offices and laboratories, certain over-the-counter blood tests can be performed in the home.
Depending on the amount of blood required for the test, blood can be drawn from a vein (venipuncture), skin puncture or artery (arterial puncture). For diabetic individuals, blood is usually drawn from a vein or fingertip. Newer home tests allow for alternative site testing from the upper arm, forearm, hand, calf, abdomen or thigh.
Obtaining blood samples takes only about five minutes, and most patients find them to be virtually painless. For most blood tests, there is very little preparation, and people can generally return to their usual daily activities after testing.
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