RT Book, Section A1 Arora, Nayan A1 Jefferson, J. Ashley A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1184182684 T1 Disorders of Magnesium Concentration T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1184182684 RD 2024/04/20 AB Normal plasma magnesium concentration is 1.7–2.1 mg/dL (0.7–0.85 mmol/L). Similar to calcium, only the ionized form is metabolically active. The primary source of magnesium excretion is via the kidney. Magnesium’s physiologic effects on the nervous system resemble those of calcium.