Fasting Insulin Resistance Index (FIRI)

£48.00

Fasting Insulin Resistance Index (FIRI) – Blood Test in London

The Fasting Insulin Resistance Index (FIRI) Profile is a specialised blood test designed to assess insulin sensitivity and identify early signs of insulin resistance. By evaluating fasting insulin and glucose-related markers, this test provides valuable insight into metabolic health and can help detect risk factors associated with type 2 diabetes, metabolic syndrome, weight gain, and cardiovascular disease. Ideal for individuals concerned about blood sugar regulation or long-term metabolic health, this test is available at Medical Diagnosis Victoria (MDX Victoria) in London, with results typically available within 4 hours.

Metabolic Health & Diabetes Risk

Fasting Insulin Resistance Index (FIRI)

The FIRI Profile is a specialized blood test used to assess insulin sensitivity and identify potential insulin resistance. This profile provides valuable insights into metabolic health and helps in the early detection of conditions such as type 2 diabetes and metabolic syndrome.

📊 Test Specifications

Clinic Testing Fee

£48.00
+ £24 Phlebotomy Fee

🩸

Sample RequiredBlood Sample

Special InstructionsFasting Required (8-12 hours)

⏱️

Turnaround Time4 Hours Processing

EXCELLENT
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Based on 108 reviews
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Daphne Garcin
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All staff I interacted with were particularly helpful and competent in addition to being kind, at both location, Victoria and NW London. Exceptional service. Fast results. Prices remain reasonable. Thank you very much. That makes such a difference when needing tests and results, which can be stressful.
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Flavie xoxo
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I just left the Victoria branch and had to leave a review! I met Kasia and Hari, and they were both absolutely wonderful. I’m extremely scared of blood and needles—they usually make me feel sick or pass out . Hari was so gentle and reassuring while taking my blood sample, and Kasia did an amazing job keeping me distracted and helping me stay calm throughout the whole process. It’s so refreshing to meet staff who are not only professional but also genuinely kind, caring, and committed to providing excellent customer service. They made what is usually a very stressful experience so much easier for me. Thank you both for your kindness and compassion. Because of the way I was treated today, I’ll definitely be recommending the Victoria branch to anyone I know who needs blood tests done!!!!!
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James
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Very professional service. Easy process to get the blood tests I need to monitor my health. Excellent value.
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Iulian Cojocariu profile picture
Iulian Cojocariu
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A very good clinic and highly experienced staff.
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Sabina M
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Always friendly and helpful staff
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Brian Burgess
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Excellent Service
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AKA Ska
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Excellent customer service, speedy service and knowledgeable staff. Results are sent to your email - can't recommend enough!
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Francesca Vavassori profile picture
Francesca Vavassori
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I want to thank the Medical Diagnosis Victoria Private Clinic for their competence, professional job, absolute kindness, and for the fast and efficient service. I go there every month to do a blood test; I receive a prompt service and the results the same day. I have nevertheless found in my life a clinic that is so competent and which takes a warm care of their patients. I truly suggest to go to this clinic. Kind regards, Francesca
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sotiria kyriakidou
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Very satisfied, fair prices and the test results on time! The nice surprise was the fantastic staff, pleasant, with a big smile and tons of positive energy! Thank you!
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Yvonne M
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Excellent service from Medical Diagnosis Victoria. The staff were professional, friendly, and made the whole Blood drawn process quick and stress-free. Results were delivered promptly with a clear and detailed report. Highly recommended!

Diagnostic Focus

Why Choose This Test?

Indications for Testing

This profile is highly recommended for individuals looking to evaluate:

  • A family history of diabetes or obesity
  • Risk factors associated with metabolic syndrome
  • Changes in weight or difficulty losing weight
  • Monitoring ongoing treatment for prediabetes

What Is FIRI?

The Fasting Insulin Resistance Index calculates your baseline metabolic state using:

  • Glucose: Your resting blood sugar levels
  • Insulin: The hormone regulating your blood sugar
  • FIRI Calculation: A proven mathematical index
  • A clear picture of your exact insulin sensitivity

Actionable Insights

This detailed internal view empowers you to:

  • Identify insulin resistance before diabetes develops
  • Provide insights into overall glucose metabolism
  • Guide healthcare providers to tailor lifestyle changes
  • Improve overall metabolic health proactively

Schedule Your FIRI Profile

Assess your metabolic health cleanly and accurately. Secure a fasting appointment with our clinical team for a rapid, gentle blood draw today.

Book Appointment

Component Index

What Is Included?

The FIRI profile includes a core triad of metabolic markers to calculate your exact insulin sensitivity.

Fasting Glucose

Measures your baseline blood sugar levels after an overnight fast, which is crucial for evaluating fundamental glucose metabolism and screening for prediabetes.

Plasma Glucose (Fasting)
Clinical focus:
Detecting elevated resting blood sugars before significant pancreatic strain occurs.

Fasting Insulin

Assesses the resting level of insulin, the hormone produced by the pancreas that regulates and drives blood sugar into your body’s cells for energy.

Serum Insulin
Clinical focus:
Identifying hyperinsulinemia (overproduction of insulin to compensate for cellular resistance).

FIRI Calculation

Uses your exact glucose and insulin levels to calculate the Fasting Insulin Resistance Index, which mathematically indicates how effectively your body uses insulin.

FIRI Diagnostic Index
Clinical focus:
Providing a concrete metric to diagnose early-stage insulin resistance and metabolic syndrome.

The Key Benefits of FIRI

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 and improved health outcomes long before type 2 diabetes fully develops.

Appointment Protocol

Your Appointment Day: Fasting Required

Important: For accurate results, fasting for at least 8-12 hours before the test is absolutely required. This ensures that glucose and insulin levels are measured accurately without the influence of recent food intake. You may drink plain water.

Upon arrival at Medical Diagnosis Victoria, a qualified phlebotomist will take a small blood sample from your arm. The process is simple and takes only a few minutes. Booking a morning slot online ensures priority service while fasting.

Clinical Environment Consultation

Pathology Reports

How To Read Your Laboratory Results

Your results will list your values alongside standard reference ranges. If a result falls outside the range, it is noted for review. Important: A single out-of-range value does not automatically indicate a medical problem. Results must be assessed in conjunction with your medical history and clinical examination.

Results Timeline: FIRI profile metrics are processed rapidly and are typically available within just 4 hours. Once your results are ready, they will be securely shared with you.

Laboratory Diagnostic Analysis

Clinical Environment Consultation

Medical Consultation

Need Help? Private GP Consultations

If you have questions about your metabolic results, we offer Private GP consultations. A doctor can review your FIRI report, explain your exact insulin sensitivity, and discuss the best lifestyle, dietary, or clinical interventions moving forward.

Book a GP Now

Clinic Support

Frequently Asked Questions

Why do I need to fast for 8-12 hours?
Fasting ensures that your glucose and insulin levels are measured at a stable baseline, free from the direct influence of recently consumed carbohydrates or sugars.
Can I drink water during my fast?
Yes, drinking plain water is highly encouraged. Proper hydration makes the phlebotomy draw easier and does not affect your metabolic markers.
How quickly will I get my results?
Your FIRI results are processed rapidly by our laboratory and will be ready within 4 hours of sample collection.
What does a high FIRI score indicate?
A higher index score generally indicates greater insulin resistance, meaning your body must produce more insulin than normal to manage your blood sugar levels.
Is the phlebotomy fee included in the price?
No, the £24 phlebotomy service fee is separate and payable directly at the clinic.
Do I need a doctor’s referral for this profile?
No referral is needed. You can book this test independently to proactively check your metabolic health.
Online Trends

Most Searched Online Questions About Insulin Resistance

Can insulin resistance be reversed?
Yes, in many cases, early insulin resistance can be significantly improved or reversed through targeted dietary changes, weight management, and regular exercise.
What are the symptoms of insulin resistance?
Often, there are no immediate symptoms. However, some individuals may experience fatigue, increased hunger, difficulty losing weight, or dark patches of skin (acanthosis nigricans).
Is FIRI the same as HOMA-IR?
They are highly similar. Both are mathematical models that use fasting glucose and fasting insulin to calculate your body’s level of insulin resistance and beta-cell function.
How does diet affect insulin levels?
Diets high in refined carbohydrates and sugars cause rapid spikes in blood glucose, forcing the pancreas to produce larger amounts of insulin, which can lead to resistance over time.
What is the difference between type 1 and type 2 diabetes?
Type 1 is an autoimmune condition where the body stops producing insulin. Type 2 is a metabolic condition primarily characterized by the body becoming resistant to the insulin it still produces.

Secure Diagnostics

Ready to Check Your Metabolic Health?

Take immediate control of your health pathway today. Arrange a precise, comprehensive Fasting Insulin Resistance screening at our premium clinic spaces.

Clinical indications listed are for general informational purposes only and do not represent a complete list of possible uses, which may vary depending on individual circumstances.

FIRI Profile results should always be assessed in conjunction with the patient’s medical history, clinical examination, and other findings by a qualified healthcare professional.