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Mounjaro, Retatrutide, and Type 2 Diabetes: Why Monitoring Matters

By Tharb Faisl

“For a more complete health assessment, many patients choose our MRI scan and blood test packages, which combine imaging with targeted laboratory analysis. This is also an excellent choice if you’re booking a full Health MOT with MRI.”

The fight against Type 2 Diabetes is changing. New treatments such as Mounjaro (tirzepatide) and the investigational drug Retatrutide are transforming how doctors manage weight and blood sugar. But while these medications are exciting breakthroughs, they don’t remove the need for regular health monitoring. At Marylebone Diagnostic Centre (MDC) in Central London, we provide advanced blood tests that ensure your treatment journey is safe, effective, and personalised.

Why Type 2 Diabetes Requires Ongoing Care

Type 2 Diabetes develops when the body becomes resistant to insulin, leading to high blood sugar levels. Left unchecked, it can cause:

  • Heart disease and stroke
  • Kidney damage
  • Vision problems
  • Nerve damage

Many people don’t realise they’re at risk until it’s too late. Even with new treatments like Mounjaro and Retatrutide, blood tests remain the most reliable way to track progress and avoid complications.

What is Mounjaro?

Mounjaro is an injectable medication that acts on two hormones, GLP-1 and GIP, to control blood sugar and promote weight loss. It’s been hailed as a “game-changer” for people with Type 2 Diabetes and obesity.

However, Mounjaro is not a stand-alone solution. Monitoring your body’s response through regular testing is crucial to ensure your liver, kidneys, and heart remain healthy.

What About Retatrutide?

Currently in clinical trials, Retatrutide is showing even greater potential for weight loss and diabetes management. Early studies suggest it may outperform other GLP-1 medications. But as with all treatments, side effects and long-term risks need careful evaluation.

Blood tests are essential in monitoring patients on emerging therapies, making sure the benefits outweigh the risks.

Essential Tests for Diabetes and Weight Management

At MDC, we recommend the following profiles for anyone managing Type 2 Diabetes or using medications like Mounjaro:

1. Diabetes Profile

  • HbA1c – average blood sugar over 3 months
  • Fasting Glucose – immediate sugar levels
  • U&E and eGFR – kidney function checks

2. Cardiac Profile (£299)

Because diabetes increases heart disease risk, this panel includes:

  • Full Blood Count (FBC) – general health and infection markers
  • CK and Troponin T – heart muscle health
  • Lipid Profile – cholesterol and triglycerides
  • Magnesium and TFT – linked to metabolic health
  • D-Dimer – checks for clotting risk

3. Marylebone Health Screening Profile (£249)

A broad, all-in-one package for overall health:

  • Liver and kidney function
  • Cholesterol and diabetes markers
  • Vitamins and iron status

With these tests, you can confidently track your response to Mounjaro, Retatrutide, or lifestyle changes.

Why Choose MDC for Diabetes Monitoring?

  • Fast Results – same-day or next-day reports.
  • Central Location – near Baker Street, Harley Street, Marylebone, Paddington, and Euston.
  • Trusted Quality – all tests meet the Marylebone High Standard.
  • Tailored Packages – add vitamins, thyroid, or hormone checks to your diabetes panel.
Marylebone diagnostic centre main

Case Study – Monitoring Mounjaro Patients

A 52-year-old patient visited MDC after starting Mounjaro for Type 2 Diabetes. He felt great after losing weight but wanted reassurance about his overall health.

  • His HbA1c dropped significantly, confirming the treatment was working.
  • However, his liver enzymes were elevated, something he hadn’t expected.
  • With early detection, his GP adjusted his dose and advised further checks.

Without routine blood monitoring, this issue could have gone unnoticed until it caused harm.

The Importance of Heart and Kidney Health

People with diabetes are up to four times more likely to develop heart disease. Medications like Mounjaro improve blood sugar and weight, but they don’t replace cardiovascular and kidney checks.

At MDC, we make it easy to include:

  • eGFR and U&E for kidney function
  • Lipid and cardiac enzymes for heart risk
  • Inflammation markers for early signs of vascular damage

Book Your Diabetes Monitoring in Central London

If you are:

  • Living with Type 2 Diabetes
  • Considering Mounjaro or Retatrutide
  • Already using weight-loss injections
  • Or simply want reassurance about your long-term health

Book a Diabetes Profile, Cardiac Profile 2, or Marylebone Health Screening at MDC today.

Location: 73 Baker Street, Marylebone, London (serving Harley Street, Paddington, Mayfair, and Central London).
Call us on +44 7495 970109 or book online at marylebonediagnosticcentre.com.

FAQs

Do I need to fast for my diabetes blood test?
Yes, fasting improves accuracy for glucose and cholesterol checks.
How quickly will I get results?
Most tests are same day; some may take 24 hours.
Can I monitor weight-loss drugs with MDC?
Yes — we recommend regular testing for anyone using Mounjaro, Retatrutide, or other GLP-1 medications.