FBS Blood Sugar Laboratory Test

Got Questions?
Give us a call today at

Fasting Blood Sugar Test

Fasting Blood Sugar or Fasting Plasma Glucose is a standard blood test to diagnose and treat diabetes. It measures the amount of glucose (sugar) in your bloodstream after fasting for at least 8 hours. This test is typically done in the morning after an overnight fast and is used to diagnose or monitor conditions like diabetes and prediabetes.

Here are some key points about Fasting Blood Sugar/Fasting Plasma Glucose (FBS/FPG) tests:

Purpose of FBS Test

The primary purpose of the FBS/FPG test is to check for elevated blood sugar levels, which can indicate the following:

  • Diabetes
  • Prediabetes
  • Gestational Diabetes

It helps assess how well your body can regulate glucose levels. For people already diagnosed with diabetes, FBS/FPG helps monitor and manage their condition.


Preparation: Fasting for FBS

To ensure accurate results, following any fasting instructions provided by your healthcare provider is crucial. This instruction may involve abstaining from food and beverages (except water) for at least 8 hours before the test.


This lab test has a reasonably easy procedure:

  1. After the fasting hours, a healthcare provider will draw a sample, usually from a vein in your arm.
  2. After that, the sample will be examined in the laboratory to determine your blood sugar levels.
  3. Finally, you can wait for the result, depending on the hours advised by the medical technician.


FBS Test Result Interpretation: Glucose Levels

To give you an overview of how to interpret the results, here are the findings:

  • FBS Normal Level: Typically falls between 74-99 mg/dL (4.1 to 5.5 mmol/L). 
  • Prediabetes: Levels between 100-125 mg/dL (5.6 to 6.9 mmol/L)
  • Diabetes: Levels of 126 mg/dL (7.0 mmol/L) or higher on two separate tests



It might be necessary to do additional or repeat tests to confirm the diagnosis if the findings are abnormal. Typical tests to check for follow-up are:


Other Essential Lab Tests


Book Your Fasting Blood Sugar Test at Medi Linx Laboratory Now!

A Fasting Blood Sugar Test is crucial in understanding and managing diabetes and maintaining overall health. By taking this test, you can prevent complications associated with high blood sugar levels. As such, consider this test part of your annual routine checkup for your complacency.


Medi Linx Laboratory Inc. is your trusted partner for clinical laboratory needs. We use the most advanced, efficient, reliable, and established international standards of clinical laboratory operations. Book your appointment through our Virtual Lab or call our QC Lab at 0939-922734. Our clinical laboratory is on the 2nd Floor of Avire Tower, P. Tuazon Blvd. Project 4, Quezon City.


Got Questions?
Give us a call today at

We Would Love To Hear Your Feedback

Share us your thoughts through this survey

What We Do

Specimen Transport Support Service

Specimen Transport Support Service

Specimen Transport Support Service is Medi Linx’s pick-up and transport of laboratory specimen where our partners are guaranteed with the highest quality and...

To know more about our wide array of routine and specialized clinical tests,

Contact Us!

Homepage Contact Us

"*" indicates required fields

A proud member of

At MEDI LINX LABORATORY INC., we are committed to safeguarding the privacy and security of your personal and health-related information. This data privacy statement outlines how we collect, use, disclose, and protect your data to ensure compliance with applicable laws and regulations, including but not limited to Republic Act No. 10173, its Implementing Rules and Regulations, and the issuance/s set forth by the National Privacy Commission (NPC).

Click here to read the Data Privacy Statement in full.