PROVIDER INITIATED TEST - The Magnesium, Packed RBC test measures the amount of magnesium inside red blood cells, providing insight into intracellular magnesium status. Because most magnesium is stored within cells rather than in the bloodstream, this test may better reflect long-term magnesium levels than a standard serum magnesium test.
This test is commonly used to evaluate suspected magnesium deficiency, especially when serum magnesium levels appear normal despite symptoms such as muscle cramps, fatigue, headaches, or irregular heartbeat. It may also be helpful in assessing nutritional status, chronic stress, or metabolic imbalances.
Magnesium, Packed RBC
PROVIDER INITIATED TEST - The Magnesium, Packed RBC test measures the amount of magnesium inside red blood cells, providing insight into intracellular magnesium status. Because most magnesium is stored within cells rather than in the bloodstream, this test may better reflect long-term magnesium levels than a standard serum magnesium test.
This test is commonly used to evaluate suspected magnesium deficiency, especially when serum magnesium levels appear normal despite symptoms such as muscle cramps, fatigue, headaches, or irregular heartbeat. It may also be helpful in assessing nutritional status, chronic stress, or metabolic imbalances.
