What is it used for? Why do I need a magnesium blood test? What happens during a magnesium blood test? Will I need to do anything to prepare for the test?
Are there any risks to the test? What do the results mean? If your results show you have a magnesium deficiency, it may be a sign of: Alcoholism Malnutrition Preeclampsia if you are pregnant Chronic diarrhea Digestive disorder, such as Crohn's disease or ulcerative colitis Diabetes If your results show you have a higher than normal amount of magnesium, it may be a sign of: Addison disease , a disorder of the adrenal glands Kidney disease Dehydration , the loss of too much bodily fluids Diabetic ketoacidosis, a life-threatening complication of diabetes Overuse of antacids or laxatives that contain magnesium If your results show you have a magnesium deficiency, your health care provider will probably recommend you take magnesium supplements to raise levels of the mineral.
If you have questions about your results, talk to your health care provider. Is there anything else I need to know about a magnesium blood test? References Hinkle J, Cheever K. Magnesium, Serum; p. Lab Tests Online [Internet]. Washington D. C: American Association for Clinical Chemistry; c— You can discuss what they mean and what comes next.
If you are pregnant, your magnesium levels might be naturally low in the second or third month of your pregnancy. Whether you are pregnant or not, a result outside the normal range might not mean that you have a health problem. Learn more here about the development and quality assurance of healthdirect content. Healthdirect Australia is not responsible for the content and advertising on the external website you are now entering. There is a total of 5 error s on this form, details are below.
Please enter your name Please enter your email Your email is invalid. Please check and try again Please enter recipient's email Recipient's email is invalid. Additionally, magnesium levels tend to be lower in individuals with asthma than in people who do not have the condition 30 , Researchers believe a lack of magnesium may cause the buildup of calcium in the muscles lining the airways of the lungs. This causes the airways to constrict, making breathing more difficult 7 , Interestingly, an inhaler with magnesium sulfate is sometimes given to people with severe asthma to help relax and expand the airways.
For those with life threatening symptoms, injections are the preferred method of delivery 33 , However, evidence for the effectiveness of dietary magnesium supplements in individuals with asthma is inconsistent 35 , 36 , In short, scientists believe severe asthma may be a symptom of magnesium deficiency in some people, but further studies are needed to investigate its role.
Magnesium deficiency has been associated with severe asthma. However, its role in the development of asthma is not entirely understood. Heart arrhythmia, or irregular heartbeat, is among the most serious symptoms of magnesium deficiency The symptoms of arrhythmia are mild in most cases. Often, it has no symptoms at all. However, in some people, it may cause heart palpitations, which are pauses between heartbeats. Scientists believe that an imbalance of potassium levels inside and outside of heart muscle cells may be to blame, a condition associated with magnesium deficiency 39 , Treating those with magnesium injections significantly improved their heart function Magnesium supplements may also help reduce symptoms in some people with arrhythmia One of the symptoms of magnesium deficiency is heart arrhythmia, or irregular heartbeat, which may increase the risk of more serious complications, such as a stroke or heart failure.
It is widely found in both plants and animal-sourced foods. The richest sources are seeds and nuts, but whole grains, beans, and leafy green vegetables are also relatively rich sources. Below is the magnesium content in 3. Talk with your doctor about creating a plan to increase your magnesium intake that works well for your needs.
Seeds, nuts, cocoa, beans, and whole grains are great sources of magnesium. For optimal health, try to eat magnesium-rich foods every day. If you believe you may have a magnesium deficiency, your suspicions can be confirmed with a simple blood test.
You should speak with your doctor to rule out other possible health problems. This test may also be necessary if your doctor thinks you might have a malabsorption or malnutrition problem.
You may have this test regularly if you take certain medications or have diabetes , kidney problems , or chronic diarrhea. Regular testing helps your doctor stay on top of your condition. On rare occasions, magnesium overdose can lead to cardiac arrest or death. The NIH provides a list of foods high in magnesium. Shredded wheat cereal , dry-roasted almonds , and boiled spinach are at the top of the list. Each one of these foods provides only about 20 percent of your daily value of magnesium per serving.
Instead, magnesium overdose may be due to taking too many magnesium supplements. These supplements are also recommended for low potassium and calcium levels in the blood. You can expect to feel some minor pain during a blood draw. You might also continue to bleed slightly for a few minutes after the procedure. You may get a bruise at the needle insertion site. Serious risks are rare and include fainting , infection, and inflammation. The normal range for serum magnesium is 1.
The standards also depend on the lab performing the test.
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