Insulin (Fasting)
Measured with fasting glucose to assess insulin resistance.
Also known as: fasting insulin, serum insulin
Price on request
We can collect this sample at your home, free of charge. Book a home visit.
- Turnaround
- 24–48 hours
- Preparation
- 8–10 hours. Water only.
- Sample
- Blood sample
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About this test
In the years before type 2 diabetes appears, the pancreas compensates by producing more and more insulin to keep glucose normal. A fasting insulin taken alongside a fasting glucose exposes that compensation, which is why it turns up in metabolic syndrome and PCOS work-ups.
What it measures
- Fasting serum insulin
- Used with fasting glucose to derive HOMA-IR
A note on results. A single test is one part of a clinical picture, not a diagnosis. Discuss your report with a qualified doctor, who will read it alongside your history and examination.
Related to
- Diabetes
Often ordered with this
Anti-GAD Antibody
Identifies autoimmune diabetes in an adult who looks like type 2.
- 5–7 working days
- No fasting
- Home collection
Blood Glucose (Fasting)
A single fasting blood sugar reading, the simplest diabetes screen.
- Same day
- Fasting required
- Home collection
C-Peptide
Shows how much insulin the pancreas is still making of its own.
- 3–5 working days
- Fasting required
- Home collection