HbA1c (Hemoglobin a1c) Test

Test ID: B-208

Blood Spot Hemoglobin a1c (HbA1c) Test Kit is designed to test for Hemoglobin A1c and accurately assess hemoglobin a1c levels in the blood.

Hemoglobin A1c (HbA1c) is a glycated form of hemoglobin that results from the binding of hemoglobin in red blood cells to glucose in the bloodstream. Once the hemoglobin has bound to glucose, it remains glycated. Circulating red blood cells have a lifespan of 120 days; therefore, the amount of HbA1c at any point in time reflects the average exposure of red blood cells to glucose over the previous 3 months. It can therefore indicate impaired glucose tolerance even when occasional fasting plasma glucose measurements are normal.

Symptoms include:

• Weakness
• Shortness of breath
• Dizziness
• Fast, irregular heartbeat
• Pounding in the ears
• Headache
• Cold hands and feet
• Pale or yellow skin

These signs and symptoms may point to anaemia or polycythaemia vera. A hemoglobin test may help diagnose these or other medical conditions to monitor medical conditions.

Test Result: You will receive your test result 3-5 working days after the laboratory receives your sample. You will see your hormone levels in graphics and numbers on your test results. You will also see laboratory comments by a hormone specialist PhD doctor. In the comments, you will find a doctor’s analysis of your hormone levels and what to do next.

• Collect samples from the comfort of your home and post them to our lab.
• The test must be used within 12 months after the purchase date.
• The test kit includes a laboratory fee: no additional laboratory cost and tax.
• Customers are responsible for shipping their samples to the laboratory.

How does the test carry out?

This blood spot-based testing tool can be done in the privacy of your home. A simple step of collecting your blood spot for the test is required. Once you provide a blood spot, you must seal the sample and send it to us. Your test result report will be emailed to you between 3 and 5 working days after the laboratory receives your sample.

How to Use

Why We Partner with ZRT Laboratory

At Hormone Lab UK, all laboratory testing is performed by ZRT Laboratory, a globally recognised CLIA-certified diagnostic and research laboratory specialising in hormone and functional health testing since 1998. Founded by renowned biochemist and breast cancer researcher Dr. David Zava, PhD, ZRT is internationally respected for its scientific innovation, accuracy, and commitment to personalised healthcare.

With more than 11 million tests performed and healthcare professionals in over 96 countries relying on its expertise, ZRT provides advanced testing for hormones, thyroid, fertility, adrenal function, neurotransmitters, cardiometabolic health, vitamin D, heavy metals, and wellness assessments.

ZRT pioneered at-home saliva hormone testing, was the first laboratory to commercialise dried blood spot (DBS) hormone testing, and developed Dried Urine Testing (DUTS), helping make advanced laboratory diagnostics more convenient and accessible.

Using advanced LC-MS/MS and ICP-MS technology, combined with rigorous quality standards, ZRT delivers highly accurate and clinically reliable results. The laboratory’s commitment to research, personalised reference ranges, and quality assurance—including qualification for the CDC Hormone Standardization (HoSt) Program for testosterone and estradiol testing—has established ZRT as one of the world’s most trusted names in hormone and wellness diagnostics.

Through our partnership with ZRT Laboratory, Hormone Lab UK provides customers across the UK and Europe with access to internationally recognised, research-backed laboratory testing designed to support better health decisions.