Symptoms
Symptoms of High Blood Sugar (Hyperglycemia):
Frequent urination
Increased thirst
Unexplained weight loss
Fatigue
Blurred vision
Slow-healing wounds
Symptoms of Low Blood Sugar (Hypoglycemia):
Shakiness or trembling
Sweating
Dizziness or lightheadedness
Hunger
Confusion or irritability
Blurred vision
See a doctor
You should see a doctor for a blood glucose test if you:
Have symptoms of high or low blood sugar.
Have been diagnosed with prediabetes or diabetes and need regular monitoring.
Are pregnant and need to screen for gestational diabetes.
Are experiencing unexplained weight changes, fatigue, or increased thirst.
Have a history of cardiovascular disease, high blood pressure, or other risk factors for diabetes.
FAQ
Q: Why do I need a blood glucose test?
A: You may need this test if you have symptoms of high or low blood sugar, to monitor diabetes, or if you’re at risk for developing diabetes.
Q: How is the blood glucose test done?
A: The test is done by taking a small sample of blood, usually from a finger prick or a vein in your arm.
Q: Do I need to fast before the test?
A: Some blood glucose tests, like the fasting blood glucose test, require you to not eat or drink (except water) for 8 hours before the test. Others, like random glucose tests, do not.
Q: What is a normal blood glucose level?
A Fasting blood glucose: 70-99 mg/dL (normal)
Random blood glucose: Less than 140 mg/dL (normal) Levels outside these ranges may indicate diabetes or prediabetes.
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