Test Detail
Overview
Interpreting Results
FAQ's

Content created by

Written by
Dr. Betina Chandolia
BDS, MDS - Oral Pathology and Microbiology
Reviewed by
Dr. Lalit Mohan Gupta
MBBS, MD - Microbiology
Want to know more?
Read our Editorial Policy

Magnesium

(Mg)
ADD TO CART
Magnesium
You need to provide
Blood
This test is for
Male, Female
Test Preparation
  1. Do not eat or drink anything other than water for 8-12 hours before the test.

Overview


What is Mg?

Magnesium (Mg2+) is both a mineral and an electrolyte which plays essential roles in metabolism, nerve and muscle functioning, and maintenance of healthy bones. The Magnesium Test is performed to measure the concentration of magnesium in blood and to indicate a deficiency of other electrolytes if any.

Why is Mg done?

The Magnesium Test is performed:

·     As a part of regular health checkups to measure magnesium levels in the blood

·    Upon the appearance of symptoms indicating magnesium deficiency like muscular weakness, muscle twitch or cramps, irregular heartbeats or cardiac arrhythmia, seizures, etc.

·       To monitor treatment efficacy of magnesium supplements at regular intervals

·     As a part of checkups for evaluating kidney diseases, malnutrition, diarrhea, and alcoholism



What does Mg Measure?

Magnesium is a mineral micronutrient which plays essential roles in body processes including enzyme functions, energy production by metabolism, contraction of muscles, and nerve functioning. It also helps in the metabolism of calcium and hence helps in the maintenance of healthy bones. Magnesium is supplied to the body from dietary sources and is absorbed in the small intestine and colon. It is subsequently absorbed into the bones and tissues. Only about 1% of the total amount of magnesium absorbed remains in the blood within a narrow normal range. The normal range of magnesium concentration is maintained in the body by utilizing the amount absorbed from food and excreting the excess through urination.


Deviation from the normal range of magnesium concentration causes Hypomagnesia (shortage of magnesium), or Hypermagnesia (excess of magnesium). Both these conditions impact normal body processes in the short term and may give rise to other conditions in the long term.

Interpreting Mg results


Interpretations

Normal range: 0.85 to 1.10 mmol/L (1.7 to 2.2 mg/dL approx.)

Hypomagnesia: Below 0.85 mmol/L (Less than 1.7 mg/dL approx.)

Hypermagnesia: Above 1.10 mmol/L (Above 2.2 mg/dL approx.)

Magnesium concentration in the body is maintained within a narrow normal range between 0.85 mmol/L and 1.10 mmol/L.

Hypomagnesia or low blood magnesium is indicated if magnesium concentration lies below the normal range.

Hypermagnesia or high blood magnesium is indicated if magnesium concentration lies above the normal range.


Answers to Patient Concerns & Frequently Asked Questions (FAQs) about Mg


Frequently Asked Questions about Magnesium

Q. How is this test performed?
This test is performed on a blood sample. A syringe with a fine needle is used to withdraw blood from a blood vessel in your arm. The healthcare provider will tie an elastic band around your arm to make the blood vessels swell with blood. This makes it easier to withdraw blood. You may be asked to tightly clench your fist. Once the veins are clearly visible, the area is cleaned with an antiseptic solution and then the needle is inserted into the blood vessel to collect the sample. You will feel a tiny pinprick during the procedure. Blood sample once collected will then be sent to the laboratory.
Q. Is there any risk associated with this test?
There is no risk associated with the test. However, since this test involves a needle prick to withdraw the blood sample, in very rare cases, a patient may experience increased bleeding, hematoma formation (blood collection under the skin), bruising or infection at the site of needle prick.
Q. What is Hypomagnesia?
Hypomagnesia is a condition where the blood magnesium levels are below the normal range. This may occur due to: · Low dietary consumption of magnesium, commonly seen in the elderly, malnutrition, or chronic alcoholism · Digestive disorders like Crohn’s Disease · Chronic diarrhea · Severe burns resulting in extensive tissue damage · Insulin treatment especially in uncontrolled diabetes · Hypoparathyroidism or low secretion of parathyroid hormone · Hyperaldosteronism or excessive secretion of hormone aldosterone · Liver cirrhosis · Hemodialysis · Inflammation of the pancreas gland or pancreatitis · Long term diuretic treatment · Inflammation of the intestinal lining · Pre-eclampsia in pregnant women
Q. What are the symptoms of Hypomagnesia?
Symptoms of chronic Hypomagnesia include: · Nausea · Appetite loss · Weakness and fatigue · Calcium deficiency · Confusion and dizziness · Muscle twitches and cramps · Tingling sensation or feeling of numbness · Abnormal heartbeat or cardiac arrhythmia · Seizures Short term or mild deficiency of magnesium usually produces very little symptoms. This happens because the body can augment mild magnesium deficiency by releasing magnesium stored in bones and tissues. Symptoms appear in case of chronic or long term deficiency of magnesium.
Q. What is Hypermagnesia?
Hypermagnesia is the condition where blood magnesium levels rise higher than the normal range. This may occur due to: · Loss of kidney functioning or complete renal failure in End-stage Renal Disease (ESRD) · Hyperparathyroidism or excess secretion of parathyroid hormone · Hypoaldosteronism or low secretion of hormone aldosterone as in Addison’s Disease · Hypothyroidism or low secretion of the hormones of thyroid gland · Overuse of antacids and laxatives containing magnesium · Dehydration · Diabetic ketoacidosis
Q. What are the symptoms of Hypermagnesia?
Symptoms of Hypermagnesia are non-specific and similar to Hypomagnesia, which includes: · Nausea and vomiting · Muscular weakness and fatigue · Appetite loss · Irregular heart rate or cardiac arrhythmia
Q. Is there any preparation required before the Magnesium test?
An overnight period of fasting is required before the blood sample is collected for the test. Inform the doctor about any medications you may be taking. Medicines containing magnesium like antacids (that contain magnesium), laxatives (such as milk of magnesia or Epsom salts), magnesium supplements, and some diuretics should not be taken for at least 3 days before this test. No other preparations are required unless specified by your doctor.
Q. When can false results appear in the Magnesium Test?
False results may appear in the Magnesium test in case of mild deficiency or in the early stages of deficiency as the body tries to bring magnesium levels to normal by releasing magnesium stored in bones and tissues into the blood. Magnesium levels are also generally reduced in the second and third trimester of pregnancy. Some medications can elevate or lower blood magnesium levels.
Q. What other tests can be prescribed by your doctor in case of abnormal Magnesium test result?
Others tests that may be prescribed upon appearance of an abnormal result in the blood magnesium test include: Urine Magnesium Test Electrolyte Panel Test Kidney Function Test Blood Phosphate Test Blood Calcium Test
Q. Which food items are good source of magnesium?
Dietary sources form the principal source of magnesium. Some very commonly available food items rich in magnesium are: · Green leafy vegetables like spinach · Fruits like bananas · Legumes like beans, chickpeas · Cabbage · Broccoli · Seafood · Whole grains
+ more

NABL

ISO

It’s the first Bangalore based speciality lab. In Bangalore, they set the trend of DAILY reporting on advanced blood tests like thyroid function, infertility, cancer, meta bolic disorders and immunology.Their services are useful in diagnosing deep-set disorders related to child growth, debility, sleep, sex, weight, mood swings, stress etc.
Know More
User Reviews

M
Muguntharaj
Call me back.

Available at Other Labs



INDIA’S LARGEST HEALTHCARE PLATFORM

150M+
Visitors
25M+
Orders Delivered
1000+
Cities
Get the link to download App
+91
Reliable

All products displayed on 1mg are 100% genuine and all labs listed on the platform are accredited

Secure

1mg uses Secure Sockets Layer (SSL) 128-bit encryption and is Payment Card Industry Data Security Standard (PCI DSS) compliant

Affordable

Enjoy 20% off on allopathy medicines, up to 50% off on health products, up to 80% off on lab tests and free doctor consultations

India's only LegitScript and ISO/IEC 27001 certified online healthcare platform
Know More About 1mg
Access medical and health information

1mg provides you with medical information which is curated, written and verified by experts, accurate and trustworthy. Our experts create high-quality content about medicines, diseases, lab investigations, Over-The-Counter (OTC) health products, Ayurvedic herbs/ingredients, and alternative remedies.

Order medicines online

Get free medicine home delivery in over 1000 cities across India. You can also order Ayurvedic, Homeopathic and other Over-The-Counter (OTC) health products. Your safety is our top priority. All products displayed on 1mg are 100% genuine.

Book lab tests

Book any lab tests and preventive health packages from certified labs and get tested from the comfort of your home. Enjoy free home sample collection, view reports online and consult a doctor online for free.

Consult a doctor online

Got a health query? Consult doctors online from the comfort of your home for free. Chat privately with our registered medical specialists to connect directly with verified doctors. Your privacy is guaranteed.