State-of-the-Art Diagnostic Laboratory

MCR's diagnostic laboratory in Kannur supports diabetes care with blood and urine testing, results review and follow-up alongside your clinical consultation.

Why laboratory testing is part of diabetes care

Different tests answer different questions. Some help establish a diagnosis, others describe longer-term glucose levels, and others look at related health needs. A clinician selects the tests in the context of your history, symptoms and treatment, rather than relying on a single number.

NIDDK explains that diabetes diagnosis uses laboratory blood tests; a home glucose meter cannot establish the diagnosis. Depending on the circumstances, an abnormal result may need confirmation with another test. [1]

Blood glucose and HbA1c: what is the difference?

• Fasting blood glucose: a measurement taken after the specified fasting period, showing the glucose level at that time. NIDDK describes fasting plasma glucose testing after at least eight hours without food. [1]
• Post-meal or random glucose: measurements taken in different circumstances. Confirm the exact timing requested by your clinician rather than treating them as interchangeable tests.
• HbA1c: a blood test that reflects average glucose over approximately three months. It is reported as a percentage and supports longer-term diabetes review. [2]

HbA1c by itself does not usually require fasting, but another test taken at the same appointment may. Certain blood conditions, pregnancy and other factors can affect the interpretation of HbA1c, so the clinician considers whether it matches the rest of your results. [2]

Other tests available within diabetes assessment

The existing MCR diagnostic service includes lipid profile, kidney and liver function tests, complete blood count and basic biochemistry. These can be discussed as part of a consultation or the published health packages.

For kidney assessment in diabetes, blood tests can help assess filtration and urine tests can check for albumin, a protein that may appear in urine when the kidneys are damaged. NIDDK explains why both blood and urine assessment matter. [3] Ask which checks are appropriate for you and when they should be repeated.

Preparing for your laboratory visit

Preparation depends on the tests ordered. Before the appointment, confirm the following with the care team. [4]

• Whether you need to fast, the duration and what you may drink.
• How to coordinate breakfast, insulin and other medicines with sample collection.
• Whether a timed post-meal sample or urine sample is needed.
• Whether a sample container or special collection instructions are required.
• Which previous reports and medicine or supplement details to bring.

Do not stop or change a medicine unless your clinician tells you to. If you eat during a requested fast, miss a preparation step or feel unwell, tell the team before collection so they can advise what to do. MedlinePlus notes that preparation and medicines can affect test results. [4]

From sample collection to a clinical decision

At the visit, confirm which tests have been requested and how the results will be shared. A blood sample, urine sample or both may be needed. Ask when the particular reports are expected and whether a follow-up consultation should be booked.

Keep a copy of each report with its date and any relevant preparation details. Bringing earlier results to your review helps the clinician discuss the changes alongside your symptoms, home glucose records and treatment.

Understanding flags and reference ranges

A laboratory reference range describes results in a reference population. It is not automatically the same as your personal treatment target. A flagged result does not always establish a disease, and a result inside the printed range does not answer every clinical question. Ranges and testing methods can also differ between laboratories. [5]

MedlinePlus recommends discussing results with a health professional who can consider your history and other findings. [5] For diabetes follow-up, ask which results need action, whether anything should be repeated and when your next review is due.

Choose testing with your care team

Contact MCR about the tests requested for your visit and their preparation. Explore our diagnostic services and diabetes care for the wider clinical support available.