A fasting insulin test measures insulin in a sample collected while fasting. It reports one marker at one point in time; by itself, it cannot diagnose insulin resistance or diabetes or establish the cause of symptoms.
The Insulin Test Kit (Fasting) uses a dried blood spot sample and immunoassay. The product page says to collect within one hour of waking while fasting.
How should you prepare?
The product instructions say to fast for at least eight hours and have water only before collection. They also advise collecting before eating or drinking anything other than water. Follow the instructions included with your kit, and ask a healthcare professional if you’re unsure whether fasting is appropriate for you.
What can the result tell you?
The report provides a fasting insulin measurement, reference information and a specialist doctor comment. A single result should be interpreted alongside other clinical information by a qualified healthcare professional. It does not, on its own, confirm a diagnosis or determine what treatment is appropriate.
Explore the test
See the Insulin Test Kit (Fasting) for the complete collection instructions and current test details. The product page states that results are available within 3–5 working days after the laboratory receives the sample.
This article is for general information only, not medical advice. Discuss personal health concerns and test results with a qualified healthcare professional.