ubertest.com | easy, affordable, and convenient blood tests
ubertest.com | easy, affordable, and convenient blood tests
UberTests

Magnesium Blood

$5.99

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This test measures your magnesium levels, an essential mineral for proper muscle, nerve, and heart function. Imbalances can lead to symptoms like weakness, cramps, fatigue, and even cardiac issues. Results can help identify deficiencies often linked to certain medical conditions, medications, or malabsorption, as well as elevated levels seen in kidney dysfunction. Always consult with a healthcare provider to interpret your results in the context of your overall health.

Quick facts

Sample type

Serum (preferred) or plasma

Turnaround

2–4 business days

Fasting

No Fasting Required

Doctor’s order included

Licensed physician review and requisition included with every test.

Magnesium Blood

  • Nutrition & Micronutrients
  • Cardiovascular Health
  • Metabolic Health
  • Muscle Health
  • Wellness & Preventive Health
    • Cpt Codes
    • 83735

    what is Magnesium Blood and why is it important?

    This test measures your magnesium levels, an essential mineral for proper muscle, nerve, and heart function. Imbalances can lead to symptoms like weakness, cramps, fatigue, and even cardiac issues. Results can help identify deficiencies often linked to certain medical conditions, medications, or malabsorption, as well as elevated levels seen in kidney dysfunction. Always consult with a healthcare provider to interpret your results in the context of your overall health.

    Consider a Magnesium Blood Test if you:

    • Are experiencing unexplained fatigue, persistent muscle weakness, cramps, tremors, or unusual numbness/tingling sensations.
    • Have irregular heartbeats, palpitations, or other symptoms indicative of a potential cardiac issue, as magnesium plays a key role in heart rhythm.
    • Have consistently low calcium or potassium levels that are not improving with standard supplementation, as magnesium deficiency can impair the absorption and utilization of these other essential electrolytes.
    • Have chronic health conditions like diabetes, alcoholism, chronic diarrhea, or other malabsorption syndromes that can affect nutrient absorption and lead to magnesium imbalances.
    • Are currently taking medications such as certain diuretics, aminoglycoside antibiotics, or immunosuppressants like cyclosporine, which are known to influence magnesium levels in the body.
    • Have known kidney issues, as both abnormally low and excessively high magnesium levels can pose significant health risks in individuals with compromised kidney function.
    • Are pregnant and experiencing symptoms related to pre-eclampsia or eclampsia, or if you are receiving magnesium sulfate therapy.
    • Suspect overconsumption of magnesium from supplements, antacids, or laxatives, which can lead to symptoms like decreased reflexes, somnolence, or heart block.

    This Magnesium Blood Test is particularly beneficial for:

    • Individuals experiencing muscle weakness, cramps, spasms, or tremors, as these can be signs of magnesium deficiency.
    • Those with unexplained heart rhythm issues, palpitations, or a history of cardiac disorders, as proper magnesium levels are critical for cardiovascular health.
    • People managing chronic health conditions like diabetes, kidney disease, alcoholism, or malabsorption syndromes, which can significantly impact magnesium balance.
    • Patients taking certain medications, including some diuretics, specific antibiotics (aminoglycosides), or immunosuppressants (cyclosporine), which can impact magnesium balance.
    • Anyone with persistent, unexplained low calcium or potassium levels, as magnesium deficiency can hinder the correction of these other electrolyte imbalances.
    • Pregnant individuals, especially when monitoring for or managing conditions such as pre-eclampsia or eclampsia.
    • Individuals proactive about their overall wellness who wish to ensure optimal mineral balance for vital nerve, muscle, and heart functions.

    A Magnesium Blood Test is commonly used for identifying and assessing a range of conditions and physiological states associated with magnesium imbalance, including:

    • Magnesium Deficiency (Hypomagnesemia): This test helps pinpoint low magnesium levels that can manifest as neuromuscular symptoms like unexplained muscle weakness, cramps, tremors, tetany, and even convulsions.
    • Electrolyte Imbalances: It is crucial for investigating persistent hypocalcemia (low calcium) and hypokalemia (low potassium) that do not respond to supplementation, as magnesium deficiency often underlies these issues.
    • Cardiac Arrhythmias: The test is vital in assessing potential causes of irregular heartbeats and other cardiac disturbances, given magnesium's critical role in maintaining normal heart rhythm.
    • Nutritional Deficiencies and Malabsorption Syndromes: It can indicate inadequate dietary intake or impaired absorption of magnesium, often seen in conditions like alcoholism, chronic diarrhea, and various gastrointestinal disorders.
    • Kidney Dysfunction: Monitoring magnesium levels is essential in patients with kidney disease, as both extremely low and dangerously high levels can occur due to impaired renal excretion.
    • Diabetic Complications: Especially relevant for individuals with diabetes, as magnesium levels can be affected, particularly during conditions like diabetic ketoacidosis.
    • Monitoring Medication Effects: Useful for patients taking certain medications known to affect magnesium balance, such as specific diuretics, aminoglycoside antibiotics, cis-platinum, amphotericin, and cyclosporine.
    • Magnesium Excess (Hypermagnesemia): The test can identify dangerously high magnesium levels, commonly associated with severe renal failure or excessive intake of magnesium-containing supplements, antacids, or laxatives, which can lead to symptoms like decreased reflexes and somnolence.
    • Pregnancy-Related Conditions: Important for monitoring pregnant individuals, particularly in cases of severe pre-eclampsia or eclampsia, or when magnesium sulfate is administered.

    Caution

    Please remember that the Magnesium Blood Test provides valuable information about your body's magnesium levels. However, test results should always be interpreted by a qualified healthcare provider in the context of your complete medical history, current symptoms, and other diagnostic findings. It is crucial not to self-diagnose or make any medical decisions, including starting or stopping treatments, without consulting your doctor.

    Frequently Ordered Together

    How It Works?

    1
    Add Your Test to Cart and Check out

    once Test Order is received, Our physicians will review your request and email you the easy-to-follow requisition form.

    2
    Locate and Visit Your Nearest Laboratory

    Find the closest partner location—most are within 2–3 miles—and drop by for a quick, no‑appointment blood draw.

    3
    Get your Results Online

    Once your sample is processed, we’ll send your report straight to your inbox within 1–3 business days. Just click the link to view your results anytime.

    4
    Book a Optional Consult

    Have Questions about results? Book a phone or video visit with one of our doctors. They’ll walk you through your report, explain any findings, and recommend next steps