Description
It is the most abundant intracellular ion next to potassium. Around 50% of magnesium in the body is found in the bones associated with calcium and phosphate. About 75% of the blood magnesium is in the RBC’s. Magnesium functions as an activator of various physiochemical processes such as phosphorylation, protein synthesis, DNA metabolism as well as neuromuscular conduction and excitability of skeletal and cardiac muscles.
Indications
High serum magnesium levels result in anesthesia and even cardiac arrest and respiratory failure. Serum magnesium level is elevated in Addison’s disease, severe diabetic acidosis, renal failure, and when large doses of magnesium antacids are taken. Low levels produce muscular irritability similar to hypocalcaemic tetany. Serum magnesium level is reduced in malabsorption, pancreatitis, alcoholism hyperaldosteronism, prolonged gastric drainage, diuritic therapy and hypoparathyroidism.
Sample Type, Quantity & Conditions
1 ml Serum 1 ml Li-Heparin Plasma Stability: 7 Days at 15-25 °C 7 Days at 2-8 °C 1 Year at (-15)-(-25) °C
Special Precautions
Normal Range
1 Day - 4 Months 1.5- 2.2 mg/dL 0.62 - 0.91 mmol/L 5 Months - 6 Years 1.7 - 2.3 mg/dL 0.70 - 0.95 mmol/L ˃6 Years - 12 Years 1.7 - 2.1 mg/dL 0.70 - 0.86 mmol/L ˃12 Years - 20 Years 1.7 - 2.2 mg/dL 0.70 - 0.91 mmol/L ˃20 Years 1.6 - 2.6 mg/dL 0.66 - 1.07 mmol/L
