A blood glucose test measures the level of glucose (sugar) in a person's blood
Customize TestA glucose blood test measures the amount of glucose also known as sugar circulating in your blood at a specific moment. Glucose is the primary energy source for your body. It comes from carbohydrates in food and fuels the brain muscles and vital organs. Your body relies on insulin and other hormones to maintain healthy glucose levels throughout the day.
When blood sugar regulation becomes impaired glucose levels may rise too high or drop too low. These changes can affect energy levels mood concentration and long term organ health. A glucose blood test offers a reliable way to assess how well your body manages sugar and helps detect potential issues early.
This Glucose Blood Test is simple accurate and widely used in routine health screening and ongoing monitoring. It plays a central role in identifying prediabetes diabetes symptoms and low blood sugar symptoms before complications develop.
The glucose blood test evaluates the concentration of glucose in your bloodstream at the time the sample is taken. It is commonly performed as a fasting blood sugar test where no food or drink except water is consumed for 8 to 12 hours before testing.
This test helps evaluate several key aspects of metabolic health.
• Overall blood sugar levels normal range
• Fasting blood sugar levels and baseline control
• Early insulin resistance
• Risk of prediabetes and type 2 diabetes
• Detection of hypoglycaemia or unusually low glucose
The Glucose Blood Test often works alongside hba1c testing also known as hemoglobin ac1 or hb1ac levels. While glucose shows current sugar levels hba1c reflects average glucose over the past 8 to 12 weeks. Together they provide a complete picture of short term and long term sugar control as recommended by organizations such as the American Diabetes Association.
The glucose blood test suits a wide range of individuals who want to understand or monitor their blood sugar.
This test is especially useful for people who:
• Want to confirm a normal blood sugar reading
• Have a family history of type 1 diabetes or type 2 diabetes
• Experience signs of high sugar such as thirst fatigue or blurred vision
• Notice low blood sugar symptoms like shakiness sweating or confusion
• Are overweight or physically inactive
• Have prediabetes symptoms
• Want early screening for signs of diabetes in women
• Need monitoring during pregnancy for gestational diabetes symptoms
• Are advised by a doctor or endocrinologist to track glucose
It is also suitable for non diabetic individuals who want reassurance that their healthy glucose levels remain stable over time.
Read more about Blood Glucose test on healthline
Glucose supports every cell in the body. The brain depends heavily on glucose for memory focus and mental clarity. Muscles use glucose for movement and endurance. Stable glucose levels support consistent energy and balanced mood.
Persistently high glucose levels can damage blood vessels and nerves. Over time this may lead to complications such as diabetic retinopathy kidney disease and diabetic peripheral neuropathy. These complications often develop silently before symptoms appear.
Low glucose levels can also be harmful. Hypoglycaemia may cause dizziness weakness confusion or loss of consciousness. Regular testing helps maintain blood sugar levels normal range and reduces health risks.
Understanding normal blood sugar levels allows accurate interpretation of results.
For most adults a normal fasting blood sugar level falls between 70 and 99 mg dL. This range reflects healthy glucose regulation in people without diabetes.
Blood sugar levels after eating naturally rise. A normal blood sugar reading after meals usually stays below 140 mg dL within 2 hours. Glucose levels after eating should return toward baseline as insulin moves sugar into cells.
Blood sugar levels normal range may vary slightly with age activity level stress and medical history. Monitoring trends over time provides more insight than relying on a single result.
Blood sugar levels after eating increase as food breaks down into glucose and enters the bloodstream. Insulin release allows glucose to move into cells where it becomes energy or stored fuel.
In healthy individuals blood sugar levels after eating decline within a few hours. Persistent elevation may signal impaired glucose tolerance.
Doctors may recommend an oral glucose tolerance test when glucose levels after eating remain high. This test helps identify early problems even when fasting values appear normal.
High glucose in blood test results may indicate different stages of impaired control.
• Fasting levels between 100 and 125 mg dL suggest prediabetes
• Fasting levels of 126 mg dL or higher on repeat testing suggest diabetes
Many people ask about values like 5.7 which often refer to hba1c. An hba1c of 5.7 percent marks the lower threshold of prediabetes and indicates increased future risk.
Early detection allows timely lifestyle changes and medical guidance which may delay or prevent progression to type 2 diabetes.
Recognizing diabetes symptoms supports early testing and intervention.
Signs of high sugar may include:
• Frequent urination
• Excessive thirst
• Unexplained weight loss
• Fatigue
• Blurred vision
Type 1 diabetes symptoms often appear suddenly and may include extreme thirst rapid weight loss and weakness.
Type 2 diabetes symptoms develop gradually and are sometimes overlooked. Early signs of diabetes in women may include frequent infections slow wound healing and increased fatigue.
Low blood sugar symptoms may include sweating trembling dizziness confusion and headache. These symptoms require prompt attention.
Regular glucose testing offers several important benefits.
• Early detection of abnormal sugar levels
• Confirmation of healthy glucose levels
• Monitoring response to diet and exercise
• Support for type 2 diabetes treatment planning
• Reduced risk of long term complications
• Improved energy and daily wellbeing
This test empowers individuals to take proactive steps before serious health issues arise.
Your glucose result reflects blood sugar at the time of testing.
A result within the normal blood sugar levels range indicates effective sugar regulation. Consistently normal readings support confidence in metabolic health.
Elevated results may prompt repeat testing or additional evaluation such as hba1c or glucose tolerance testing. Doctors interpret results alongside symptoms medical history and other laboratory findings.
Low results may require assessment for hypoglycaemia especially if symptoms are present.
Check out our HBA1C Blood Test
The glucose test and hba1c test serve different but complementary purposes.
The glucose test shows current blood sugar status. The hba1c test shows average glucose exposure over several weeks.
A1c normal levels usually remain below 5.7 percent. Higher values suggest impaired control and increased risk of complications such as diabetic retinopathy.
Using both tests together allows more accurate diagnosis and monitoring.
A glucose blood test is often recommended when certain symptoms appear.
These include:
• Signs of sugar diabetes such as frequent thirst
• Prediabetes symptoms like mild fatigue
• Low blood sugar symptoms including shakiness
• Gestational diabetes symptoms during pregnancy
• Unexplained weight changes
• Recurrent infections
Prompt testing helps clarify whether symptoms relate to blood sugar imbalance.
Home glucose testing collect a small blood sample. Some kits send the sample to a laboratory while others provide instant readings using approved devices.
Home testing offers convenience privacy and regular monitoring. Following instructions carefully ensures accuracy and reliable results.
If results fall outside the healthy range remain calm and seek professional guidance.
A healthcare provider or endocrinologist may recommend:
• Repeat testing for confirmation
• Hba1c testing
• Lifestyle changes in diet and activity
• Further evaluation if needed
Early action reduces the risk of long term complications.
Blood sugar regulation changes with stress illness aging and lifestyle. Regular monitoring helps track patterns and identify shifts early.
Consistent testing supports stable healthy glucose levels and long term wellbeing.
It measures the level of glucose in your blood at the time of testing.
A normal fasting blood sugar reading is typically between 70 and 99 mg dL.
Blood sugar levels after eating usually remain below 140 mg dL within 2 hours.
It may indicate impaired glucose control prediabetes or diabetes and requires follow up.
Yes it helps confirm normal blood sugar levels and establish a baseline.
Frequency depends on risk factors symptoms and medical advice.
Glucose shows current sugar levels while hba1c reflects average levels over time.
Consult a healthcare provider or endocrinologist if results are abnormal or symptoms persist.
Your kit will have a self-addressed envelope enclosed, to return we recommend using Royal Mail, if you are unsure of the level of service in your area you may wish to upgrade to a guaranteed next day service.
Your blood sample will be analysed at the accredited doctor’s laboratory in London. They are very professional and quick to upload the data; your results should be ready the same day they are tested.
Once your results are uploaded on your bespoke platform we will let you know our thoughts on the results of your test and offer information about having a consultation with the doctor if necessary.
A blood glucose test is a blood test that screens for diabetes by measuring the level of glucose (sugar) in a person’s blood