Arrange your collection
Choose your location, add the test to your care bag and select a time. If you are booking for someone else, assign the test to them in checkout.
Choose collection locationBiochemistry · Individual laboratory test
Magnesium
Magnesium supports nerve signalling, muscles and heart rhythm. A blood measurement can help investigate suspected imbalance or monitor an existing condition.
Price for this test on its ownAED 125Test price AED 25
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
- Sample
- Serum
- Laboratory turnaround
- 24 hours
- Collection
- Dubai
- Laboratory
- Intel Lab
Understanding the test
What does the Magnesium test measure?
Also called Blood Magnesium
Magnesium can be relevant when muscle symptoms occur or when potassium or calcium has been difficult to correct. Kidney function and medicines can affect its balance.
When it may be requested
Muscle or nerve concerns
A clinician may consider magnesium when persistent symptoms accompany other signs of imbalance.
Potassium or calcium changes
Magnesium can be relevant when other electrolyte changes persist despite treatment.
Before your sample
Prepare for collection
SpecimenSerum
Your checklist
Fasting is generally unnecessary. Tell the team about magnesium supplements, antacids or laxatives and ask the prescriber how to time the latest dose.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
Smart Report
Understanding your result
24 hoursLaboratory turnaround
Result guideMagnesium
Reading your result
The serum value samples a small part of total body magnesium. It should be read alongside related electrolytes and any medicines or supplements.
What can affect it
- Only a small proportion of total body magnesium circulates in serum.
From sample to follow-up
Your testing journey
Laboratory testMagnesium
- Specimen
- Serum
- Turnaround
- 24 hours
Open your laboratory report
Look for Magnesium in your report. Use the sample type and collection time when comparing it with an earlier report.
Explore Smart Report
Discuss the next step
Mention antacids, diuretics and magnesium-containing supplements and review any potassium or calcium result from the same draw.
Health packages
Packages that include this test
Compare the other tests in each package before choosing.
Clinical expertise
Your laboratory team
Patient questions
Before you book
Does serum magnesium measure all my magnesium stores?
Only a small proportion of body magnesium circulates in blood. A result within range can still need interpretation alongside symptoms and other electrolytes.
Can a magnesium supplement taken before the test affect the result?
Yes. A recent dose of a magnesium supplement, antacid or laxative can lift the result temporarily and hide a genuine shortfall. Ask your doctor whether to hold the morning dose before the sample, rather than stopping anything on your own.
Why is magnesium checked when my potassium is the problem?
Magnesium is needed for the kidney to hold on to potassium properly. If magnesium is depleted, potassium keeps leaking away and replacement doses have little lasting effect, so correcting the magnesium first often makes the potassium treatment work.
KEEP EXPLORING
Explore health packages.
Open a package to see exactly which tests it includes.
Extended Vitamins & Minerals
A focused panel of essential vitamins and minerals to uncover hidden nutritional deficiencies.
- biomarkers
- 8
- Samples
- Blood
- Listed turnaround
- 48 hours
AED 299
Explore package
Fitness Profile
An extensive panel for active individuals, covering inflammation, iron, metabolic, hormonal, thyroid and nutritional status.
- biomarkers
- 60
- Samples
- Blood
- Listed turnaround
- 72 hours
AED 599
Explore package
Basic Health Checkup
Blood count, liver, kidney, cholesterol, blood sugar and urine tests: the essentials in one visit.
- biomarkers
- 63
- Samples
- Blood + Urine
- Listed turnaround
- 24 hours
AED 199
Explore package
Basic Wellness
A complete blood count with liver enzymes, cholesterol, kidney markers and fasting blood sugar from one blood sample.
- biomarkers
- 31
- Samples
- Blood
- Listed turnaround
- 24 hours
AED 129
Explore packageChoosing for a particular need?
We can help you read the options.
Your next step
Magnesium test at home.
Sources & further reading
Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.