Magnesium (Whole Blood / RBC)
The Magnesium (Whole Blood or Red Cell) test measures magnesium levels within red blood cells rather than in serum alone. Magnesium is an essential mineral involved in muscle function, nerve signalling, heart rhythm regulation, and energy production.
Serum magnesium levels may appear normal even when intracellular magnesium is low. Measuring magnesium within red blood cells can therefore provide a more accurate reflection of long-term magnesium status.
Low magnesium levels may contribute to muscle cramps, fatigue, headaches, abnormal heart rhythms, anxiety, and metabolic disturbances.
This test is often requested when deficiency is suspected despite normal serum magnesium levels or in individuals with chronic conditions affecting nutrient absorption.
- Price: £110
- Code: MGRBC
- TAT: 11 Working Days
- Sample Type: Blood
What is this test used for?
It is used to assess intracellular magnesium status.
Who should consider this test?
People with symptoms of deficiency or chronic illness may benefit.
What do the results mean?
Low levels suggest magnesium deficiency requiring further management.
Do I need to prepare the test?
No fasting is usually required unless advised otherwise.
FAQs
When will I receive my results?
Results are usually available within the stated turnaround time.
Should I discuss my results with a doctor?
Yes, results should always be reviewed with a qualified healthcare professional.
Why Choose Marylebone Diagnostic Centre?
At Marylebone Diagnostic Centre, we provide specialist diagnostic testing with a strong emphasis on clarity, accuracy, and patient reassurance. Our experienced clinical team ensures careful sample handling and clear communication throughout your testing journey.
We focus on helping you understand what your results mean and how they fit into your wider health picture, supporting informed decisions with confidence.
Book Now
Take a proactive step towards understanding your health by booking your Magnesium (Whole Blood / RBC) test with Marylebone Diagnostic Centre today.
