Ordering the Glucose, Plasma Test
The Glucose, Plasma test measures the amount of glucose, or sugar, in your blood, which helps check how your body manages sugar. This test is often used to screen for diabetes, monitor blood sugar levels, and help guide treatment plans for those with known blood sugar issues. Interestingly, glucose levels can be affected by stress, illness, or even certain foods, which means this test can sometimes reveal changes before symptoms appear.
Ordering this test can help you:
- Track blood sugar changes over time to spot trends or sudden shifts.
- Identify early signs of diabetes or prediabetes before symptoms develop.
- Monitor how well a current treatment plan is working for blood sugar control.
- Check for blood sugar problems if you have risk factors like family history or weight changes.
- Support your doctor in making decisions about medication or lifestyle adjustments.
Who Should Consider Blood Sugar Screening
People who have a family member with diabetes, have noticed unexplained tiredness, or have gained weight recently may benefit from this test. For example, someone who feels thirsty more often and needs to use the bathroom frequently might want to check their blood sugar to see if there is an underlying issue.
Ordering this test may also be helpful in these situations:
- Someone with high blood pressure who wants to check for related blood sugar changes.
- A person with a history of heart disease looking to monitor risk factors.
- Anyone who has experienced sudden vision changes or blurry eyesight.
- Someone who is pregnant and needs to screen for gestational diabetes.
- A person who has had frequent skin infections, which can sometimes be linked to high blood sugar.
Checking blood sugar levels can help catch problems early, allowing for changes that may prevent complications like nerve or kidney issues. Delaying this test could mean missing the chance to spot rising blood sugar before it leads to more serious problems.
Preparing for Your Blood Glucose Measurement
Fasting is required for this test, and you should not eat or drink anything except water for at least 8 hours before your blood draw. Always follow any directions your doctor or healthcare provider gives you, as they may have specific instructions based on your situation.
Labs Included When Ordering Your Glucose, Plasma Test
| Test Name | Reference Range | What This Measures | Low and High Levels of Glucose, Plasma |
|---|---|---|---|
| Glucose | 70-99 | Glucose is the main sugar found in your blood and is a key source of energy for your body. This test checks how well your body manages sugar and helps detect problems with blood sugar control. |
High levels mean your body may not be using insulin properly, which can point to diabetes or prediabetes.
Low levels mean your body may not have enough sugar available, which can cause symptoms like shakiness or confusion. |
Reference ranges can change over time. For the most current values, visit the Quest Diagnostics lab test directory.
Glucose, Plasma FAQ
Is there Glucose, Plasma testing near me?
You can find nearby locations for Glucose, Plasma testing using the patient service center locator, which also lists mobile phlebotomy options for added convenience. This is especially helpful if you need regular blood sugar checks and want a site that fits your schedule or mobility needs.
What is the cost of the test?
The price you see for the Glucose, Plasma test includes all fees, including sample collection at patient service center locations. Ordering this test is worth it if you want to catch blood sugar changes early and avoid complications linked to high or low glucose.
How often should I retest?
Most people should repeat this test every 6 to 12 months, or as recommended by their doctor, especially if they have risk factors or a history of blood sugar problems. Regular retesting helps track changes and supports timely adjustments to your care plan.
How accurate is the test?
The Glucose, Plasma test uses the hexokinase enzymatic method, which is known for its high precision in measuring blood sugar. Specificity is 99.5% and sensitivity is 99.7%. All tests at TrueHealthLabs.com are performed by CLIA-certified labs, meeting strict quality and precision standards.
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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