Fasting Blood Sugar Test (Glucose): Procedure and Risks
A fasting blood sugar test calculates the quantity of sugar (glucose) in the blood. It is a simple, safe, and widely used method of diagnosing prediabetes, diabetes, or gestational diabetes.
A health professional will prick your finger or insert a needle into a vein in your arm to draw the blood. For 8–12 hours before the test, don't drink or eat anything (except water). In most cases, doctors instruct patients to measure their fasting blood sugar instantly after waking up and before consuming any food or drink.
Fasting Blood Sugar Test Cost in India
| Test Type | Blood Test |
|---|---|
| Preparation | Do not eat or drink anything for at least 8-12 hours before the test. |
| Report | Within a few hours or about a day. |
| Fasting Blood Sugar test Price in Hyderabad | Rs. 150 to Rs.350 approximately. |
| Fasting Blood Sugar test costs in Vizag | Rs. 150 to Rs.350 approximately. |
| Fasting Blood Sugar test costs in Nashik | Rs. 150 to Rs.350 approximately |
| Fasting Blood Sugar test Price in Aurangabad | Rs. 150 to Rs.350 approximately |
| Fasting Blood Sugar test costs in Nellore | Rs. 150 to Rs.350 approximately |
| Fasting Blood Sugar test costs in Chandanagar | Rs. 150 to Rs.350 approximately |
| Fasting Blood Sugar test costs in Srikakulam | Rs. 150 to Rs.350 approximately |
| Fasting Blood Sugar test costs in Sangamner | Rs. 100 to Rs.300 approximately |
| Fasting Blood Sugar test costs in Kurnool | Rs. 100 to Rs.300 approximately |
| Fasting Blood Sugar test costs in Kakinada | Rs. 150 to Rs.350 approximately |
| Fasting Blood Sugar test costs in Karimnagar | Rs. 100 to Rs.300 approximately |
| Fasting Blood Sugar test costs in Zaheerabad | Rs. 50 to 250 approximately |
| Fasting Blood Sugar test costs in Sangareddy | Rs. 100 to Rs.300 approximately |
| Fasting Blood Sugar test costs in Nizamabad | Rs. 100 to Rs.300 approximately |
| Fasting Blood Sugar test costs in Mumbai | Rs. 100 to Rs.300 approximately |
| Fasting Blood Sugar test costs in Begumpet | Rs. 100 to Rs.300 approximately |
| Fasting Blood Sugar test costs in Vizianagram | Rs. 50 to Rs.250 approximately |
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Get A Second OpinionFasting Blood Sugar Test Procedure
Preparation:
- It is essential for you to not eat anything for 8 to 12 hours before the test. That means nothing to eat or drink besides water. An empty stomach helps you get an accurate picture of your blood sugar levels.
- Your doctor may direct you to refrain from certain medicines before the test.
Test Setup:
- Go to the lab or medical facility that will conduct the test. This process is quick and easy and typically takes no more than a few minutes.
- A healthcare worker will put a disinfectant on your arm (most commonly, the inner elbow), where they will take your blood.
Blood Collection:
- A healthcare worker introduces a needle into a vein to take a small amount of blood. You might feel a quick pinch or mild sore.
- Then, the blood sample is sent to a lab for tests.
Post-Test:
- After your blood is drawn, you can return to your routine. Let the staff know (if you feel faint), and they will help you with it.
- There are usually no serious side effects; you may experience slight bruising at the needle site.
Results:
- You will be assessed for your blood sugar levels compared to normal ranges. An average blood sugar level after fasting is generally 70–99 mg/dL. Between 100 and 125 mg/dl may mean prediabetes, while 126 mg/dL or higher can imply diabetes.
After the Test:
- Your doctor will review the results with you and suggest what you should do next based on them lifestyle changes, more tests, or treatments, for example.
- It is an important test in diabetes monitoring, determination of risk and management of blood sugar levels.
Normal Fasting Blood Sugar Levels
- 99 mg/dL or less:This is a typical fasting blood glucose level.
- 100–125 mg/dL:Fasting blood sugar levels in this range are usually indicative of prediabetes.
- 126 mg/dL or higher:This is a typical fasting blood glucose level.
For any abnormal value, you must consult a doctor.
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Book an AppointmentRisks & Side Effects of Fasting Blood Sugar Test
Discomfort from Blood Draw
- The main risk to fasting blood sugar is the mild discomfort felt when the needle enters the vein to extract blood. You might sense a brief sting from here.
Bruising or Swelling
- Of course, there may also be minimal bruising or swelling in the area of needle injection. It is typically benign and self-limiting, lasting only a few days.
Dizziness or Fainting
- In some people (rarely), the act of taking blood during a routine procedure may cause them to feel lightheaded, dizzy, or faint. If that happens, contact the health care provider right away so they can help.
Infection (Rare)
- There is a very low chance of the infection at your blood drawing site. This is easily avoided by using sterile equipment and high-quality procedures.
Complications from Fasting
- Fasting for a long time before the test may cause fatigue, irritability, or headache, particularly in patients with a natural predisposition to low blood sugar levels.
- The blood sugar test is far more extensive than a safe procedure with fewer health risks and side effects. If you have worries, talk with your healthcare company prior to the examination.
Frequently Asked Questions
Can I drink water before a fasting blood sugar test?
Yes, you can drink water before the test, as it does not significantly affect blood sugar levels. However, avoid other beverages or foods that contain calories.
Can medications affect fasting blood sugar test results?
Yes, certain medications like corticosteroids, diuretics, and some antidepressants can influence blood sugar levels. Inform your doctor about all medications you are taking.
How long does it take to get the results of a fasting blood sugar test?
Results are typically available within a day or two, depending on the laboratory's processing time.
How often should I check my fasting blood sugar levels?
It's recommended to check your fasting blood sugar levels regularly, especially if you have diabetes or are at risk for it. Your doctor can advise on the frequency based on your health status.
What do high fasting blood sugar levels indicate?
High fasting blood sugar levels may suggest diabetes or poor blood sugar control. Consult your doctor for further evaluation and management.
What do low fasting blood sugar levels indicate?
Low fasting blood sugar levels (hypoglycemia) can be concerning and may result from certain medications, insulin overdose, or other medical conditions. Seek medical attention if you experience symptoms of low blood sugar.
Is there an average blood sugar level for fasting tests?
The average blood sugar level for fasting tests should ideally be within the normal range of 70 to 100 mg/dL for optimal health.
How can I maintain regular fasting blood sugar levels?
Maintaining regular fasting blood sugar levels involves a balanced diet, regular physical activity, medication adherence (if prescribed for diabetes), and regular monitoring as advised by your healthcare provider.
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