Glucose Testing
What is a Blood Glucose Test ?
A blood glucose test measures the glucose levels in your blood. Glucose is a type of sugar. It is your body's main source of energy. A hormone called insulin helps move glucose from your bloodstream into your cells.
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What is it used for ?
A blood glucose test is used to find out if your blood sugar levels are in a healthy range. It is often used to help diagnose and monitor diabetes.
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What happens during a blood glucose test?
A health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial. You may feel a little sting when the needle goes in or out.
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Why do I need a blood glucose test?
Your healthcare provider may order a blood glucose test if you have symptoms of high glucose levels or low glucose levels.
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Symptoms of high blood glucose levels include:
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Increased thirst and urination (peeing)
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Blurred vision
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Sores that don't heal
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Weight loss when you're not trying to lose weight
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Numbness or tingling in your feet or hands
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Symptoms of low blood glucose levels include:
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Feeling shaky or jittery
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Hunger
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Fatigue
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Feeling dizzy, confused, or irritable
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A fast heartbeat or arrhythmia (a problem with the rate or rhythm of your heartbeat)
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Having trouble seeing or speaking clearly
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Fainting or seizures