.png)
Magnesium
3032
cpt
normal turn-around time
assays included
specimen type
minimum required
Mg
83735
24 hours
Mg
Serum or Plasma; Urine
1 mL of serum or heparinized plasma; 1 mL of 24 hour urine
collection instructions
Collect blood in a serum separator tube (SST) or a lithium heparin tube.
Allow the blood to clot at room temperature for 30 minutes if using an SST.
Centrifuge and separate serum or plasma from cells within 2 hours of collection.
Collect urine over a 24-hour period in appropriate container.
Transport the specimen at 2-8°C if not tested within 2 hours.
collection instructions
Hemolysis: Red blood cell destruction can falsely increase glucose levels.
Improper Labeling: Specimen must be labeled with at least two patient identifiers.
Insufficient Quantity: Volume less than 1 mL may not be sufficient for accurate testing.
Lipemia: Excessive fat in the blood can interfere with certain test results.
clinical significance
The Magnesium test measures the level of magnesium in the blood, which is essential for many biochemical processes in the body, including muscle and nerve function, heart rhythm, and bone strength. Abnormal magnesium levels can indicate conditions such as kidney disease, gastrointestinal disorders, or endocrine disorders. This test helps diagnose magnesium deficiency (hypomagnesemia) or excess (hypermagnesemia) and monitor patients with conditions affecting magnesium balance.