Magnesium Test

Magnesium Test

This test can help determine the amount of magnesium you have in your blood. Low levels cause a magnesium deficiency (hypomagnesemia) and is more common than high levels (hypermagnesemia). Read more
Test details

Sample type:
Blood
Preparation:
Fasting is not required for this test. If you are taking vitamins, or a vitamin supplement, containing magnesium, you should consult your doctor to determine if you should stop taking them for at least one week before your sample is collected.
Test type: In Person
Find Patient Service Centers
$39.00
+ $6.00 Physician Service Fee
Unfortunately this test is not right for you based on your responses.

What Icon
What
This test measures the level of magnesium in your blood.
Who Icon
Who
Anyone who wants to assess their levels of magnesium or is having symptoms that could be related to a magnesium imbalance. Must be 18+ years of age to purchase.
How Icon
How
Blood
Schedule an appointment, then visit one of the Quest Diagnostics Patient Service Centers.
About the Test

This test can help determine the amount of magnesium you have in your blood. Low levels cause a magnesium deficiency (hypomagnesemia) and is more common than high levels (hypermagnesemia). Magnesium is critical to maintain proper muscle and brain function. It also helps turn nutrients into energy at the cellular level. Health problems that may cause a magnesium deficiency include malnutrition, alcoholism, and diabetes.

Electrolytes are necessary for basic cell function and help the body perform and maintain important processes. Magnesium is an electrolyte responsible for proper muscle, nerve, and heart function, and helps to control blood pressure and blood sugar in the body.

When electrolytes are imbalanced, normal bodily functions are disrupted and can cause life threatening complications. By testing your magnesium levels, you and your healthcare provider may be able to better understand the cause of your symptoms and identify next steps.

 

How it works

  • In-person
  • In-home sample collection
1

Buy a lab test & schedule an appointment

No doctor visit required for purchase. Book a visit to one of 2000+ Quest locations.

2

Visit Quest for sample collection

3

Get fast results online

Access results online as soon as they’re available.

4

Get physician support

Discuss your results with an independent physician at no extra cost.

1

Buy a lab test
+ in-home sample collection

If in-home service is available in your area, purchase for an additional $79 fee.

2

Schedule an appointment

After you make a purchase, Quest Mobile will contact you to schedule an in-home sample collection appointment.

3

In-home sample collection

A Quest Mobile phlebotomist will collect your sample and deliver it to Quest Diagnostics.

4

Get fast results online

Access results online as soon as they’re available. Discuss your results with an independent physician at no extra cost.

 

In-home sample collection is not available in all locations.
Is in-home sample collection available near me?

FAQs