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Symptom Checker

Step 4: Read and complete the decision guide to learn more about your symptoms.

Blood Magnesium Test

Diarrhea can flush magnesium and other substances out of the body. This could have been the reason for your low magnesium level. Let your doctor know that you were having diarrhea when you had your blood drawn. He or she will probably want to repeat the test after your diarrhea has cleared up.

Click here to explore other reasons for a low magnesium level.

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