Overview
A serum magnesium test measures magnesium levels in the blood, essential for enzyme function and metabolic processes. Elevated magnesium can occur with reduced kidney function, as seen in dehydration, diabetic acidosis, and Addison’s disease, leading to lower excretion. Conditions like chronic glomerulonephritis and aldosteronism, or medications like cyclosporine, increase magnesium excretion. This test aids in identifying causes of abnormal magnesium levels and assessing nutritional adequacy.
What is the Magnesium Test ?
A Serum Magnesium test measures the level of Magnesium in the Blood. Increased levels of Magnesium may be seen with Kidney disease because Magnesium is excreted by the Kidneys. A low magnesium level can be a
sign of Diabetes, some digestive problems, malnourishment, or long-term (Chronic) alcoholism. Lower magnesium levels during pregnancy may mean preeclampsia.
What is the Purpose of the Magnesium Test ?
The Magnesium Test is advised for following analysis:
- Diagnosing Magnesium Deficiency: The test is recommended for individuals exhibiting symptoms such as muscle weakness, cramps, fatigue, nausea, or arrhythmias.
- Monitoring Chronic Conditions: It is used to monitor patients with conditions like uncontrolled diabetes, gastrointestinal disorders, and kidney problems, as magnesium levels can be indicative of the severity of these issues.
- Keep Nutritional Status: The test helps assess magnesium levels in patients with malnutrition or those on restrictive diets, particularly those at risk for deficiencies.
- Monitor Heart Issue: This is because magnesium plays a key role in heart function and rhythm.
- Monitoring the Effect of Medications: The test is often advised for patients taking certain medications (like diuretics or proton pump inhibitors) that can influence magnesium levels.
- Preoperative Assessment: It may be included in preoperative evaluations to ensure that patients have adequate magnesium levels before surgery.
- Diagnosing Problems with Other Minerals: Since low magnesium blood levels can lead to persistently low calcium and potassium levels, the test may be conducted to help diagnose issues with calcium, potassium, phosphorus, and/or parathyroid hormone—factors critical to calcium regulation.
- Monitoring Response to Supplements: Magnesium levels may be measured frequently to monitor the response to oral or intravenous (IV) magnesium supplements.
- Monitoring Calcium Supplementation: The magnesium test may be ordered alongside calcium and phosphorus testing to monitor the effectiveness of calcium supplementation.
When is a Magnesium Test Recommended ?
The following are a few signs that could indicate an Magnesium Test:
Symptoms of low magnesium include:
- Poor appetite
- Nausea
- Vomiting
- Fatigue
- Weakness
- Muscle cramps
- Numbness
- Tingling
- Irregular heartbeat (arrhythmia)
- Seizures
Symptoms of high magnesium:
- Diarrhea
- Abdominal cramping
- Cardiac arrest
Preparation for Magnesium Test
- Unless otherwise directed by your doctor, there is no need for you to make any special preparations before the Magnesium Test.
- Other blood tests can be carried out in addition to a Magnesium Test. If your doctor advises you to have multiple tests at once, they may ask you to fast for a specific period of time prior to a blood test.
- Drink adequate water before sample collection.
- Avoid vigorous physical activity before the sample collection.
- Follow the preparatory instructions as guided by your doctor.
What is the Cost of the Magnesium Test ?
The Price of a Magnesium Test is Rs. 400. However, cost of the test may fluctuate depending on following factors:
- Other tests advised along with Magnesium Test
- Offers or discounts
- Empanelment of the patient
Components of Magnesium Test
- Magnesium: Magnesium is necessary for your Heart, Muscles, and nerves to function appropriately. Additionally, Magnesium aids in the regulation of Blood pressure and Blood Glucose, or Blood Sugar. It boosts your Immune system and is crucial for healthy Bone growth.
Interpreting the Magnesium Test Results
Normal Blood Magnesium levels fall within 1.7 to 2.3 mg/dL (0.7–0.95 mmol/L).
Low Magnesium levels are often associated with:
- Low dietary intake
- Advancing age
- Malnourishment
- Chronic alcoholism
- Digestive disorders (Such as Crohn’s disease, enteric fistula)
- Uncontrolled diabetes
- Hypoparathyroidism (eg, post-parathyroid surgery)
- Long-term diuretic use
- Prolonged diarrhea
- Chronic glomerulonephritis
- Post-surgery
- Severe burns
- Pre-eclampsia
High Blood levels of Magnesium are often associated with:
- End-stage renal disease (ESRD)
- Hyperparathyroidism
- Hypothyroidism
- Tissue trauma
- Dehydration
- Diabetic acidosis (when first seen)
- Addison’s disease
- Use of magnesium-containing antacids or laxatives
- Prolonged use of aspirin
How is the Magnesium Test Done ?
The Blood Sample for Magnesium Test is taken in following steps:
- The area where the needle will be inserted to take your blood is cleaned with an antiseptic alcohol wipe. The hollow on the inside side of the elbow or the tip of the finger are the most common sites for this.
- A tourniquet or a band is tied around your upper arm to facilitate the access to the vein in your arm.
- A needle is used to puncture your vein. The blood sample is collected into a test tube attached to the needle. The needle may cause a small pinch or sting when it is inserted.
- Once the vial or test tube is filled, the blood sample collection for the test is finished and the needle is taken out.
- Finger pressure is applied on the puncture site to stop the bleeding and the band aid is applied at the site.
How to Schedule a Magnesium Test with Dr. B. Lal Lab ?
- Go to the Dr. B. Lal Lab website.
- Go to the “Book a test” tab.
- Select the “Lab Test” tab.
- Type “Magnesium Test” in the search bar.
- Click on the test.
- The test page with all the test details will show up.
- Click on “Book Now”.
- Login and verify your mobile number with OTP.
- Now enter your details.
- Select date & time for booking a Magnesium Test in Jaipur.
- Check out.