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Fasting Insulin Resistance Index (FIRI) LIS Code: FIRI

Discover your insulin sensitivity with our Fasting Insulin Resistance Index (FIRI) blood test at Vitalync Diagnosis. Early detection of insulin resistance for better metabolic health.

→ 4 hours → UKAS-accredited lab → No GP referral needed
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Profile Price
£58
Results in
4 hours
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Sample
Blood
£58
+ £25 phlebotomy fee per visit
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⏱ Results in 4 hours
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Phlebotomy Fee: £25
A one-off £25 phlebotomy fee applies per visit — this covers your blood draw regardless of how many tests or profiles you book in the same appointment.
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Before your appointment
Fasting required (8-12 hours).

What's included in this profile

Fasting Insulin Resistance Index (FIRI)
  • A calculated score combining fasting glucose and insulin
  • Estimates how resistant the body's cells are to insulin
  • A higher score suggests greater insulin resistance
Glucose
  • The main sugar circulating in the blood, used for energy
  • Raised fasting levels can indicate prediabetes or diabetes
  • A cornerstone test for metabolic health
Insulin
  • The hormone that helps cells absorb glucose from the blood
  • Raised fasting levels can indicate insulin resistance
  • Often assessed alongside glucose for a fuller metabolic picture

About this profile

The Fasting Insulin Resistance Index (FIRI) Profile is a specialized blood test designed to assess insulin sensitivity and identify potential insulin resistance. This test provides valuable insights into metabolic health and is instrumental in the early detection of conditions like type 2 diabetes and metabolic syndrome. 

What is the Fasting Insulin Resistance Index (FIRI)? 

The FIRI profile includes the following key components: 

Glucose: Measures blood sugar levels, essential for evaluating glucose metabolism. 

Insulin: Assesses insulin levels, which regulate blood sugar levels. 

FIRI Calculation: Uses the glucose and insulin levels to calculate the Fasting Insulin Resistance Index, indicating how effectively the body is utilizing insulin. Indications for Testing 

The FIRI profile is recommended for: 

Individuals with risk factors: Those with a family history of diabetes, obesity, or metabolic syndrome. 

Early detection: Identifying insulin resistance before type 2 diabetes develops. 

Monitoring: Tracking insulin sensitivity in individuals with prediabetes or those undergoing treatment for insulin resistance. 

What Can Be Detected? 

The FIRI profile helps in: 

Assessing insulin resistance: Detecting reduced insulin sensitivity, which is a precursor to type 2 diabetes. 

Evaluating metabolic health: Providing insights into glucose metabolism and the body’s response to insulin. 

Guiding treatment: Assisting healthcare providers in tailoring interventions and lifestyle changes to improve insulin sensitivity and overall metabolic health. Fasting Requirements To ensure accurate results, fasting for 8-12 hours before the test is required. This fasting period ensures that glucose and insulin levels are not influenced by recent food intake. 

Key Benefits The Fasting Insulin Resistance Index (FIRI) Profile offers a comprehensive evaluation of insulin sensitivity and glucose metabolism. By providing crucial information about insulin resistance, this profile supports early detection and management of metabolic disorders, enabling timely intervention for improved health outcomes. 

Samples Required: 1 Blood Sample 

Results in: 1-3 Working Days 
Exams Included: Glucose Insulin Fasting Insulin Resistance Index (FIRI)

Our Professional Services Our diagnostic testing is carried out by Medical Diagnosis, a UKAS ISO 15189 accredited laboratory, ensuring all results meet the highest UK standards of quality and accuracy. Clinical consultations and treatments, including Testosterone Replacement Therapy (TRT) and Weight Management programmes, are delivered through Medical Diagnosis Victoria, which is registered with the Care Quality Commission (CQC). All clinical services are provided by GMC-registered doctors with extensive experience, following thorough medical assessment in line with UK regulatory standards.
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