Magnesium - Whole Blood
Magnesium is an important mineral needed for proper muscle, nerve, and enzyme function. It also helps the body make and use energy and is needed to move other electrolytes (potassium and sodium) into and out of cells. Most of the magnesium in the body is found in the bones and inside the cells. Only a tiny amount of magnesium is normally present in the blood.
Magnesium is found in fibre-rich foods such as green leafy vegetables, avocados, bananas, wholemeal bread and brown rice as well as in fish and meat. Excess magnesium exposure can cause breathing problems, skin and eye irritation, flu-like symptoms and an upset stomach. Low magnesium can cause muscle aches and pains, fatigue, osteoporosis, an irregular heartbeat and high blood pressure. Low magnesium is associated with heart disease, artherosclerosis, stroke and diabetes.
The result of a magnesium whole blood test is calculated using results from both a magnesium red blood cell (RBC) test and a magnesium serum test to find the total amount of magnesium in the blood.